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Give the use of CaCl2

Posted by Avika Goel 6 years, 3 months ago

CBSE > Class 10 > Science

3 answers

Kajal Devrani 6 years, 3 months ago

Used as food aditive or preservative

Muskan Pandey 6 years, 3 months ago

It is used as a food additive,food preservative , for de-icing roads in winter,and as brine in refrigeration plants.It is also used as a swimming pool chemical, in water treatment plants and for desiccating purposes. It also has applications in metallurgy, oil-well drilling ,and rubber, paper dye and paint industries.

Aadya Singh ? 6 years, 3 months ago

It is used as food additive, food preservative, and as brine in refrigeration. It is also used as a swimming pool chemical, in water treatment plants.

ANSWER

Give some examples of tyndal effect

Posted by Faisal Firoz 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Avika Goel 6 years, 3 months ago

In forest canopies

ANSWER

Define Convex mirror and covex lens

Posted by A S?? 6 years, 3 months ago

CBSE > Class 10 > Science

27 answers

A S?? 6 years, 3 months ago

Ok bye abhi ...gd...St

? ? 6 years, 3 months ago

Vo aagye. Thanks

Abhinav ? 6 years, 3 months ago

Ankesh bro. ...sorry..jana padega..bye..good night..

A S?? 6 years, 3 months ago

Ok honey ji

A S?? 6 years, 3 months ago

Aur batayiye ji

? ? 6 years, 3 months ago

Unhone hi bola meko... Meri bekar kismt m offline thi , unko reply tk ni Ki OR phir vo chale gye.. Agar vo kl aaye please unko aap sorry bol dena.. Please ??

A S?? 6 years, 3 months ago

Ni ji ...ni aaye the vo

Abhinav ? 6 years, 3 months ago

Nhi toh

A S?? 6 years, 3 months ago

Yes deep plz

? ? 6 years, 3 months ago

Aseem aapke chats m Bhi aye the kya??? ?

Abhinav ? 6 years, 3 months ago

Yes..sure deep.

? ? 6 years, 3 months ago

Sorry to interfere b/w u

? ? 6 years, 3 months ago

Excuse me.. May I ask something plz

A S?? 6 years, 3 months ago

Ja ji board bhi aa raha h

Abhinav ? 6 years, 3 months ago

Oh..ha..behaviour toh acha h..mujhe toh bht pasand h vo pr bhai banaya kya kru..??

Abhinav ? 6 years, 3 months ago

Hm..ab shayd ni ayegi yaha..

A S?? 6 years, 3 months ago

Aapko ek baat bataoo...i like her behaviour and her attitude

A S?? 6 years, 3 months ago

Koi.ni ji.

Abhinav ? 6 years, 3 months ago

Ha..pehle sahi thi ab pata ni kya hua usko...

A S?? 6 years, 3 months ago

Koi ni ji...sabka apna alag nature hota h ji

Abhinav ? 6 years, 3 months ago

Busy bhi rehti h..pata ni pr ab zyada baat bhi ni krti..

A S?? 6 years, 3 months ago

Bht biji rahti h ji vo

A S?? 6 years, 3 months ago

???

Abhinav ? 6 years, 3 months ago

Theek h bestie ji apki

A S?? 6 years, 3 months ago

Bestie ji kaisi h ji

A S?? 6 years, 3 months ago

Thanks

Abhinav ? 6 years, 3 months ago

The mirror whose outward surface is reflecting surface is called convex mirror.

ANSWER

How to get back Ethanoic acid from Ester. Write chemical equation and the process

Posted by Megha Basine 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Avika Goel 6 years, 3 months ago

By using NaoH

ANSWER

Biggest cell in human

Posted by Pappu Singh 6 years, 3 months ago

CBSE > Class 10 > Science

8 answers

Rani Mishra ??? 6 years, 3 months ago

Nerve cell

Shivam Mishra 6 years, 3 months ago

hru

Choudhary ? 6 years, 3 months ago

Nerve cell

? Queen ?. 6 years, 3 months ago

Hi

Shivam Mishra 6 years, 3 months ago

hii freinds

? Queen ?. 6 years, 3 months ago

Nerve cell

Tanushri Kapoor 6 years, 3 months ago

A Nerve cell

Aadya Singh ? 6 years, 3 months ago

Nerve cell

ANSWER

What are the advantages of nuclear en3

Posted by Alin Umani 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 6 years, 3 months ago

Advantages of Nuclear Energy :
1) Nuclear reactions release a million times more energy, as compared to hydro or wind energy. Hence, a large amount of electricity can be generated.
2) The biggest advantage of nuclear energy is that it does not generate any greenhouse gases (carbon dioxide , ozone , methane etc.)
3) Nuclear reactor uses uranium as fuel and we have high reserves of uranium in earth.

ANSWER

"Evolution shoul not be equated with progress".Explain this statement.

Posted by Deepak Singh 6 years, 3 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Why solenoid is used in making electromagnet

Posted by Vishal Kumar 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 6 years, 3 months ago

Soft iron core should be used inside a solenoid to make it a electromagnet. Attributing to the property of magnetising/demagnetising ability of soft iron core makes it a suitable material.

ANSWER

Is hcl kings of acid

Posted by Khushvant Chouhan 6 years, 3 months ago

CBSE > Class 10 > Science

4 answers

Aarti Rana 6 years, 3 months ago

No sulphuric acid is king of acids

Sandhya Yadav 6 years, 3 months ago

Absolutely

Shivansh Singh Rajpoot 6 years, 3 months ago

Yes, moderately

Vishal Kumar 6 years, 3 months ago

Yes

ANSWER

Provide me assertion reasons type question

Posted by H Y 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

&Why? .......... 6 years, 3 months ago

For AR type questions you should have to go through any edu web...or buy any books

ANSWER

Which acid is known as kings of acid

Posted by Khushvant Chouhan 6 years, 3 months ago

CBSE > Class 10 > Science

7 answers

Avika Goel 6 years, 3 months ago

Sulphuric or battery acid

Sourabh Ganguly 6 years, 3 months ago

Hcl

Aarti Rana 6 years, 3 months ago

H2so4

Megha Basine 6 years, 3 months ago

Hydrochloric acid HCl

Sudeep Humberi 6 years, 3 months ago

hcl

&Why? .......... 6 years, 3 months ago

Sulphuric acid is king and his queen is Nitric acid ???

H Y 6 years, 3 months ago

Sulphuric acid

ANSWER

Tell the statement of Fleming's Left hand rule

Posted by Kunal Haldar 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Ujjwal Sharma 6 years, 3 months ago

According to fleming left hand rule ,if we streched thumb,fore finger and mid finger in left hand in such a way that these are perpendicular to each other. If fore finger indicate the direction of magnetic field,mid finger indicates the direction of electric currrent,then Thumb indicates the direction of force or motion

ANSWER

A compound c of molecular formula c2h4o2 reacts with na metal to form a r and evolves a gas which burns witha. Pop sound compound v on treatment with an alcohol a in prsence of an acid form a sweet smelling compound s molecular formula c3h6o2 on additon of naoh to c it gives r and water. S on treatment with naoh solution gives back r and a.. Identify c r a and s and write down reaction involved

Posted by Divya Choudhary 5 years, 11 months ago

CBSE > Class 10 > Science

11 answers

Megha Basine 6 years, 3 months ago

C - Ethanoic acid (CH3COOH) R - Sodium acetate (CH3COONa) A - Ethanol (CH3CH2OH) S - Ester (CH3COOC2H5) Hydrogen gas burn with pop sound 1) Etanoic acid + Sodium = Sodoum acetate + Hydrogen 2) Ethanoic acid + Ethanol = Ester + Water 3) Ethanoic acid + Sodium hydroxide = Sodium acetate + Water 4) Ester + Sodium hydroxide = Sodium acetate + Ethanol

&Why? .......... 6 years, 3 months ago

Suhu .......is okay....

&Why? .......... 6 years, 3 months ago

Srry *Suhana...

&Why? .......... 6 years, 3 months ago

Suhanal will you take a step down to our previous chat....

&Why? .......... 6 years, 3 months ago

C- Acetic Acid....R- Sodium acetate....A-Methanol.....S- Methyl acetate.......and the reaction involved here is of Acetic acid reacted with Sodium....to form sodium acetate and hydrogen....and further continue.... you yourself write the compound and make the rxn here not possible......sorryy

? Queen ?. 6 years, 3 months ago

Hiii

Megha Basine 6 years, 3 months ago

Sry for that....... Its correct

&Why? .......... 6 years, 3 months ago

Acquired immuno deficiency Sundrome....AIDS

Megha Basine 6 years, 3 months ago

I think molecular formula of compound c is wrong check it and reply

Deva Kashyap 6 years, 3 months ago

Full form of AIDS

Deva Kashyap 6 years, 3 months ago

Water type of mineral

ANSWER

What happened when the small and big magnet are joint with electrical cell in both side north and south

Posted by L○V€R ? B●I ? 6 years, 3 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Image formed by cancave lens

Posted by Sakshi Gupta 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

H Y 6 years, 3 months ago

Real and inverted

ANSWER

Why xoe heat peoduces light

Posted by Shashwat Shukla 6 years, 3 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

What is genotype and phenotype?????

Posted by Rani Mishra ??? 6 years, 3 months ago

CBSE > Class 10 > Science

5 answers

Lalit Gharu 6 years, 3 months ago

Genotype is resiceve then phenotype so The physical pic or character of any organ or plant is phenotype and The resecive chareter is genotype

&Why? .......... 6 years, 3 months ago

Genitical description is genotype while physical discription is phenotype

Khushi S 6 years, 3 months ago

Genotype is a set of genes in our DNA which is responsible for a paticular trait and phenotype is a physical apperance trait

Aadya Singh ? 6 years, 3 months ago

Genotype in the description of genes present in an organism.

Aadya Singh ? 6 years, 3 months ago

The characteristic which is visible in an organism is called phenotype.

ANSWER

Is NO2 a Green house gas?

Posted by Rishi Thakur 6 years, 3 months ago

CBSE > Class 10 > Science

25 answers

&Why? .......... 6 years, 3 months ago

Laughing gas u will study in detail in 11 about it

Rishi Thakur 6 years, 3 months ago

What do you mean mr langur

Rishi Thakur 6 years, 3 months ago

Are you satisfied ms.Adaya

&Why? .......... 6 years, 3 months ago

Oh yess reaction...

Rishi Thakur 6 years, 3 months ago

Sorry it was N2O. This is a greenhouse gas.

&Why? .......... 6 years, 3 months ago

**disorderness

Aadya Singh ? 6 years, 3 months ago

Nitrogen dioxide isn't a greenhouse gas , although they are important in the process of creation tropospheric ozone which is a greenhouse gas. So, we can say that it acts as an indirect greenhouse gases by producing tropospheric greenhouse gas.

&Why? .......... 6 years, 3 months ago

Our atmosphere has 78% Nitrogen so we can not say its greenhouse gas but in some cases we can as disirderness of any thing is harmful...?

Rishi Thakur 6 years, 3 months ago

If you don't agree with me then give online test of chapter "our environment " i make you sure you Will find the answers.

Rishi Thakur 6 years, 3 months ago

No matter what you think

Rishi Thakur 6 years, 3 months ago

Have a look what "AS" has answered.

A S?? 6 years, 3 months ago

In the following statement...no2 is a grn huse gas

Rishi Thakur 6 years, 3 months ago

Correct" AS"

Aadya Singh ? 6 years, 3 months ago

To aap hi read kar lona type karke...

A S?? 6 years, 3 months ago

Nitrous Oxide - N2O Neither nitric oxide nor nitrogen dioxide are greenhouse gases, although they are important in the process of creation of tropospheric ozone which is a greenhouse gas. ... The major processes and fluxes involve transfer of nitrogen as nitrous oxide between the atmosphere and the surface of the Earth.

A S?? 6 years, 3 months ago

One tonne of nitrous oxide is equivalent to 298 tonnes of carbon dioxide. ... The process that removes nitrous oxide from the atmosphere also depletes ozone. So nitrous oxide is not only a greenhouse gas, but also an ozone destroyer. Nitrous oxide (or N2O), is more commonly known as laughing gas.

Rishi Thakur 6 years, 3 months ago

Type "is NO2 a greeGreen house gas ".read deeply .

Aadya Singh ? 6 years, 3 months ago

What...???

Rishi Thakur 6 years, 3 months ago

Tell me adaya?

Aadya Singh ? 6 years, 3 months ago

Yes....abhi maine search kiya to...mere me to No dikha rha h....aapko kha se yes mil gya...?

Rishi Thakur 6 years, 3 months ago

Have you searched on internet?

Aadya Singh ? 6 years, 3 months ago

Don't know how...???

Rishi Thakur 6 years, 3 months ago

Internet pe dikhata hai. "Yes".

Rishi Thakur 6 years, 3 months ago

How

Aadya Singh ? 6 years, 3 months ago

No

ANSWER

A mirror can produse the following magnification (1)m>+1 (2)m<+1 (a) identify the mirror in each case (b) draw a ray diagram to obtain given magnification in each case

Posted by Rajat Soni 6 years, 3 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

What is progeny??

Posted by Rani Mishra ??? 6 years, 3 months ago

CBSE > Class 10 > Science

3 answers

Lalit Gharu 6 years, 3 months ago

After the *** male Gemyte fuse in female gamYte by the processes the make a new call and this cell devloped into embryo and embryo is part of progency

Sandhya Yadav 6 years, 3 months ago

Baby boy or a girl??

Abhinav ? 6 years, 3 months ago

Offspring.

ANSWER

Law of sagrigation

Posted by Babita Kumari 6 years, 3 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Center of curvature

Posted by Vamshi Goud 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Aadya Singh ? 6 years, 3 months ago

The center of spherical shell, of which the mirror forms a section, is called center of curvature of the mirror.

ANSWER

Contraceptive methods

Posted by Arpita Choudhary 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Parvesh Sabnani 6 years, 3 months ago

Condoms copper-T

Manvi Sirohi 6 years, 3 months ago

The prevention of pregnancy in women is called contraception They can be divided into three categories 1.barrier methods 2.chemical methods 3. Surgical methods

ANSWER

How much energy is given to each coloumb of charge passing through a 6 v battery

Posted by Shivrin Vasan 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Aadya Singh ? 6 years, 3 months ago

6 Joule.

ANSWER

Full form of icse

Posted by Kajal Devrani 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Miss. 1234 6 years, 3 months ago

The Indian Certificate of Secondary Education ( ICSE )

ANSWER

How is the equivalent resistance less than the least resistance in a parallel combi ation of resistors?

Posted by Shraddha Randive 6 years, 3 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

State one harmful effect of depletion of Ozone layer on the living organism of the ecosystem

Posted by Aman Kumar 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Ruhi Rao 6 years, 3 months ago

Ozone preventsthe harmful UV radiations to enter the Earth . Due to its depletion, the UV rays enter and harm the living beings.

ANSWER

Hii freinds what's up

Posted by Shivam Mishra 6 years, 3 months ago

CBSE > Class 10 > Science

38 answers

Shivam Mishra 6 years, 3 months ago

Hii aadya

Aadya Singh ? 6 years, 3 months ago

Hello bro..

Shivam Mishra 6 years, 3 months ago

seb thik he

Ayushi Mishra 6 years, 3 months ago

Bye

⛩️Singh Emperor☀️☀️☀️ . 6 years, 3 months ago

Ok bye rat me phir ayenge.....

⛩️Singh Emperor☀️☀️☀️ . 6 years, 3 months ago

Are koi bhi aadya ....shreya aur abhi bhai

Ayushi Mishra 6 years, 3 months ago

Ap pk hona jiski ladai hui hh suhana se

Shivam Mishra 6 years, 3 months ago

kon sis kiski sis bhai

Ayushi Mishra 6 years, 3 months ago

Pta nahi....pr munhe lgta h... Usk class k boys n kuch kiya hh..warna vo roti bilkul nahi hh..mene first time usse rote hue dekha aaj

⛩️Singh Emperor☀️☀️☀️ . 6 years, 3 months ago

Aur batao hamari sis kaise hai

Shivam Mishra 6 years, 3 months ago

mera to 16 dec se ha

Shivam Mishra 6 years, 3 months ago

accha kya hua suhu ko

Ayushi Mishra 6 years, 3 months ago

Hmm..mera bhi achcha hua

⛩️Singh Emperor☀️☀️☀️ . 6 years, 3 months ago

Nahi yrr....mera 10 december ko hai

Shivam Mishra 6 years, 3 months ago

hm bhi thik he bro aj apka bhi paper tha kya

⛩️Singh Emperor☀️☀️☀️ . 6 years, 3 months ago

Thik hi hai.....aap batao

Shivam Mishra 6 years, 3 months ago

hii pk bro kya hal he

Shivam Mishra 6 years, 3 months ago

ok ayushi aur apka kesa gya

⛩️Singh Emperor☀️☀️☀️ . 6 years, 3 months ago

Hey bro .....

Ayushi Mishra 6 years, 3 months ago

Usska paper achcha hua

Shivam Mishra 6 years, 3 months ago

hii suhu paper kesa gya

Shivam Mishra 6 years, 3 months ago

yarr meri block ho gyi thi isliye message nhi kr paya

? Queen ? 6 years, 3 months ago

Hii

Aadya Singh ? 6 years, 3 months ago

Meri to 1:30 pe hoti h

Aadya Singh ? 6 years, 3 months ago

Ohh

Aadya Singh ? 6 years, 3 months ago

Bahut jhoot bolte ho yrr...tumhari baat pe kabhi believe ni karna chahiya...

Shivam Mishra 6 years, 3 months ago

Mera parr me chot lg rkhi he hfta 4ya5 se schoo nhi gya rest pa hu gher pe

Shivam Mishra 6 years, 3 months ago

Yarr mjak kr rha hu me gher pe hu

Shivam Mishra 6 years, 3 months ago

Nhi to

Aadya Singh ? 6 years, 3 months ago

Tumhare school me phone allow h kya....?

Aadya Singh ? 6 years, 3 months ago

Badi jaldi aa jate ho. ?

Shivam Mishra 6 years, 3 months ago

Abhi bh me school me he hu

Shivam Mishra 6 years, 3 months ago

Hmesa jata hu school me

Shivam Mishra 6 years, 3 months ago

Jata hu

Dr.Ravi _♥️??? ....... 6 years, 3 months ago

Good afternoon...

Dr.Ravi _♥️??? ....... 6 years, 3 months ago

Hlo....

Aadya Singh ? 6 years, 3 months ago

Tum school ni jate kya kabhi....????

Raj Ojha ???? 6 years, 3 months ago

Pagal hai kya ????

ANSWER

What is a DNA copy

Posted by Rajesh Kunisetty 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Gaurav Seth 6 years, 3 months ago

A process where a DNA molecule produces two similar copies of itself in a reproducing cell is called DNA copying.
Its importance are:

It makes the transmission of characters from parents to the next generation possible.
It causes variation in the population.

ANSWER

Power ka fourmula

Posted by Sakshi Yadav 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

⛩️Singh Emperor☀️☀️☀️ . 6 years, 3 months ago

P=vi.........p=mv.....p=1/f

? Queen ? 6 years, 3 months ago

P = w/ t

ANSWER

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