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  • 5 answers

Amit Kumar 4 years, 1 month ago

Solution in which base is soluble in water. It has pH value more than 7.

Benazir . M.I. 4 years, 1 month ago

a chemical substance that reacts with acid to form a salt has a pH value of more than 7.

Deeksha Gautam 4 years, 1 month ago

The base soluble in water is known as alkaline.

Subham Pratap 4 years, 1 month ago

Scientists use pH to describe how acidic a substance is on a scale of 0 to 14. By definition, a substance is alkaline if it has a pH of over 7.

Nivya Rekshita 4 years, 1 month ago

The base which can be dissolved in water is alkaline
  • 5 answers

Bibek Thappa 4 years, 1 month ago

Nahcolite

Priya Singh 4 years, 1 month ago

Sodium hydrogen carbonate

Avnish Prajapat 4 years, 1 month ago

Sodium Hydrogen Carbonate

Faiza Shaikh 4 years, 1 month ago

bicorbonate of soda

Aditi Khedar 4 years, 1 month ago

Soduim hydrogen carbonate
  • 3 answers

Sunil Vin 4 years, 1 month ago

This equation is a Quadratic equation (in form a x 2 + b x + c = 0 ) Use the Quadratic formula: x = − b ± √ b 2 − 4 a c 2 a In this case a = 1 , b = 2 , c = − 7 Substitute the values: → x = − 2 ± √ 2 2 − 4 ( 1 ) ( − 7 ) 2 ( 1 ) → x = − 2 ± √ 4 − ( − 28 ) 2 → x = − 2 ± √ 4 + 28 2 → x = − 2 ± √ 32 2 → x = − 2 ± √ 16 ⋅ 2 2 → x = − 2 ± 4 √ 2 2 → x = − 2 2 ± 4 √ 2 2 → x = − 2 2 ± 4 √ 2 2 ⇒ x = − 1 ± 2 √ 2

Parth Chaturvedi 4 years, 1 month ago

roots or zeroes of the given eq. are imaginary

Sachin Parmar 4 years, 1 month ago

Caco³+co²
  • 0 answers
  • 1 answers

Priyanshi Attrish 4 years, 1 month ago

The circulatory is a complex process that occurs in multi cellular organisms like human being,animals etc... The oxygenated blood from lungs goes to the left atrium through the pulmonary vein.. The oxygenated blood goes from left atrium to the left ventricle through the valves present in our heart... Than the oxygenated blood goes from the left ventricle to the organs of our body through the main artery known as aorta. The oxygenated blood used in our body and the deoxygenated blood from organs of our body goes to the right atrium through the main vein known as vena cava. The deoxygenated blood from the right atrium goes to the left ventricle through the valves present in our heart.. Finally the deoxygenated blood from the left ventricle goes back to the lungs through the pulmonary artery.. Finally the deoxygenated blood is gone out from our body and again oxygenated blood comes and this process again occurs in our heart.. The heart is made up of special muscle known as cardic muscle.. Hope it's helpful for u ???
  • 3 answers

Parth Chaturvedi 4 years, 1 month ago

Depends upon honesty of your milkman

Naghma Talat 4 years, 1 month ago

The milk obtained from milkman contains baking soda , which makes the milk more basic and since for milk to convert to curd ,it needs to be an acidic medium , so it takes more time for lactobacillus to convert milk to curd .

Aditi Sheth 4 years, 1 month ago

Because the amount of water is more than the amount of milk , So , Milk obtained from a milkman requires more time to set into curd...
  • 3 answers

Avnish Prajapat 4 years, 1 month ago

It's make plaster of Paris

Priyanshi Attrish 4 years, 1 month ago

If gypsum is over heat than it brust in the air It's requires a perfect Temperature that is 273k..

Naghma Talat 4 years, 1 month ago

If gypsum is over heated all its water of crystallization vapourizes making it anhydrous ( without water ) which is no longer it use , and becomes a waste product
  • 4 answers

Aishwarya Bagde 4 years, 1 month ago

When you add water to acid it is very explosive it is a exothermic reaction , it can also catch fire..

Haya Sikander 4 years, 1 month ago

We should always add acid to water with constant stirring instead of adding water to acid. The reason is that if we add water to acid the reaction that'll take place will be highly exothermic and hence can cause severe injury.

Priyanshi Attrish 4 years, 1 month ago

If we add water in acid it's brust out even when we add water in acid we have to shake that tube in which the acid is present because when water is added to acid drop by drop it's so high boiling point so it produces a lot of heat and there's a chances to expose but if u add acid in water so acid is so harmful and its expose in air that's why we never add water in acid

Anushka Tyagi 4 years, 1 month ago

When you mix acid with water, it's extremely important to add the acid to the water rather than the other way around. This is because acid and water react in a vigorous exothermic reaction, releasing heat, sometimes boiling the liquid. ... When you add water to acid, the water boils and the acid may splatter and splash!
  • 3 answers

Priyanshi Attrish 4 years, 1 month ago

The reaction in which the compounds share each other ions and form a new product.this reaction is called double displacement reaction.. Example- HCL+NAOH ----- NACL+H2O In that reaction hcl and naoh displace And share each other ions ..

Mansi Shehrawat 4 years, 1 month ago

Those solutions in which two or more compounds react by an exchange of ions to form two new compounds are called double displacement reaction .

Gunjan Giri 4 years, 1 month ago

Double displacement reaction is the process in which two elements exchange each other ....
  • 4 answers

Aishwarya Bagde 4 years, 1 month ago

Non metals are acidic in nature.

Priyanshi Attrish 4 years, 1 month ago

Non metal are acidic in nature

Fs Ñøtês 4 years, 1 month ago

Acids

Avinash Singh 4 years, 1 month ago

Sour
  • 0 answers
  • 1 answers

Priyanshi Attrish 4 years, 1 month ago

Prism is a triangular shape object which have refraction surface. Prism is just opposite to the rectangular glass slab.. prism splits the white light into seven colours that is known as Vibgyor.
  • 5 answers

Avinash Singh 4 years, 1 month ago

H2so4

Kuldeep Dobwal 4 years, 1 month ago

H2SO4

Preet Srivastav 4 years, 1 month ago

H2So4

Naman Kumar 4 years, 1 month ago

H2so4

Vani Sharma 4 years, 1 month ago

H2so4
  • 2 answers

Priyanshu Yadav 4 years, 1 month ago

Ooooooo. Nnb. Mi8o

Gunjan Giri 4 years, 1 month ago

There are three form of iron ..... iron 1 ,iron 2 ,iron 3
  • 2 answers

Jisha Rawat 4 years, 1 month ago

And metal oxides are always basic in nature .

Jisha Rawat 4 years, 1 month ago

Combination reaction- it is a type of reaction in which two or more substitutes chemically combine together to form a single product . For example- Magnesium reacts with oxygen to give magnesium oxide . 2Mg+O2=2MgO
  • 1 answers

Shree Singh 4 years, 1 month ago

All things about refraction of light and the formation of rainbow ??
  • 5 answers

Manish Yaduvanshi 4 years, 1 month ago

????? ???????? ?????

Rishabh Yadav 4 years, 1 month ago

700 nm

Ujjwal Kumar 4 years, 1 month ago

High

Khushi Singh 4 years, 1 month ago

What is the colour of magnesium ribbon

Prakshi Vahista 4 years, 1 month ago

650
  • 5 answers

Dikshita Rathi 4 years, 1 month ago

Holozoic

Malladi Sriram 4 years, 1 month ago

Holozoic

Lalitha Lalitha 4 years, 1 month ago

Holozoic

Sneha Swami 4 years, 1 month ago

holozoic

Somansh Sarvesh 4 years, 1 month ago

Amoeba comes under holozoic mode of nutrition because there is ingestion then digestion..
  • 5 answers

Jisha Rawat 4 years, 1 month ago

It defraction of light that casts shadow of pencil . Because defraction is the phenomenon of bending of light around the object when an obstacle ( object) comes in the way of the ray of light .

Vyash S 4 years, 1 month ago

Reflection

Rohit Hitman 4 years, 1 month ago

Defraction of light

Trushti Parmar 4 years, 1 month ago

Thanks

Raj Nandini Chouhan? 4 years, 1 month ago

I think it's reflection Hope it may help
  • 5 answers

Rohit Hitman 4 years, 1 month ago

Respiration inside human body

Pawandeep Kaur 4 years, 1 month ago

Melting of ice cubes

Anshit Jaiswal 4 years, 1 month ago

Evaporation of water

Komathi .R 4 years, 1 month ago

In which energy is absorbed is known as endothermic reaction Example : decomposition reaction chemical formula is 2AgBr(s)----------->2Ag(s)+Br2(g)

Tanisha Garg 4 years, 1 month ago

Photosynthesis reaction
  • 1 answers

Aishwarya Bagde 4 years, 1 month ago

https://www.learncbse.in/mcq-questions-for-class-10-science-chemical-reactions-and-equations-with-answers/
  • 2 answers

Aishwarya Bagde 4 years, 1 month ago

https://www.learncbse.in/mcq-questions-for-class-10-science-chemical-reactions-and-equations-with-answers/

Mayank Yadav 4 years, 1 month ago

Kk
  • 5 answers

Parth Chaturvedi 4 years, 1 month ago

You have written wrong as lens have optical centre not pole

Kuldeep Dobwal 4 years, 1 month ago

Equal 2f

Shree Singh 4 years, 1 month ago

Equal to 2f

Vanshika Joshi 4 years, 1 month ago

Equal to 2f

Yuvasree N 4 years, 1 month ago

Equal to 2F
  • 5 answers

Komathi .R 4 years, 1 month ago

The sky is blue in day time because scattering of light

Aadarsh Shrivastav 4 years, 1 month ago

Due to the scattering of blue light. The distant of earth from pole is shorter to comparsion from equator. And also the blue and violent light scatter most that's why the sky appears blue in daytime...

Anjali Taehyung 4 years, 1 month ago

Due to the scattering of blue light. The distant of earth from pole is shorter to comparsion from equator. And also the blue and violent light scatter most that's why the sky appears blue in daytime...

Maurya 8970 4 years, 1 month ago

Because blue light is more scattered than other colour

Kanika Chand 4 years, 1 month ago

The sunlight that reaches the earth's atmosphere is scattered in all directions by the gases and dust particles present in the atmosphere So blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. This is the reason sky appears blue.

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