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Zn+H2SO4→ZnSO4+H2 Pass the gas which is liberated during the reaction through soap solution. Bring a burning splinter near it, the pop sound indicates that the gas which is liberated is hydrogen .

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How humans are reproduce?

Posted by Nimish Gupta 3 years, 8 months ago

CBSE > Class 10 > Science

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Why are chips packets flushed with nitrogen gas?

Posted by Jatin Dahiya 3 years, 8 months ago

CBSE > Class 10 > Science

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Vinayak Guleria. 3 years, 7 months ago

To prevent it from rancidity...

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Thilak Lokesh 3 years, 7 months ago

Yes,to prevent oxidation of Oil's and fats that it would cause rot and have rotten smell

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Student Life 3 years, 8 months ago

To prevent oxidation of oils and fats in them which would cause them to rot

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A silvery-white metal X is in the form of ribbons. Upon ignition, it burns with a dazzling white flame to form white powderY. When water is added to the powder Y, it partially dissolves to form a substance Z which is used as an antacid. (2) a. What is metal X ? b. Name the white powder Y. c. What is the substance Z ? d. Write the chemical reactions that are taking place

Posted by Jatin Dahiya 3 years, 8 months ago

CBSE > Class 10 > Science

1 answers

Student Life 3 years, 8 months ago

Magnesium hydroxide

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A housewife wanted her house to be whitewashed. She bought 10 kg of quick lime from the market and dissolved it in 30 litres of water. What will she observe?

Posted by Jatin Dahiya 3 years, 8 months ago

CBSE > Class 10 > Science

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Student Life 3 years, 8 months ago

Milky white appearance I think

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What is the difference between the following two reactions? i. Mg + 2HCl ——–> MgCl2 + H2 ii. NaOH + HCl ——–> NaCl + H2O.

Posted by Jatin Dahiya 3 years, 8 months ago

CBSE > Class 10 > Science

1 answers

Student Life 3 years, 8 months ago

The first one is a metal - acid reaction which gives salt + H2 Second is a acid - base reaction (neutralization reaction) which gives salt + H2O

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Why do we store silver chloride in dark-colored bottles? Explain in brief.

Posted by Jatin Dahiya 3 years, 8 months ago

CBSE > Class 10 > Science

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Simran Rajput 3 years, 6 months ago

Because if silver cloride come in the contect of light then it will react with light and will lose its properties

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Numericals of reflection of light

Posted by Rishabh Sharma 3 years, 8 months ago

CBSE > Class 10 > Science

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Name the Projects on plant conservation in india

Posted by Anjali Setia 3 years, 8 months ago

CBSE > Class 10 > Science

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4 rule of ray diagram of mirror

Posted by Suhas Ryaka 3 years, 8 months ago

CBSE > Class 10 > Science

2 answers

Debashish Sethy 3 years, 7 months ago

At centre of curvature

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Kajal Verma 3 years, 8 months ago

If the incident ray passes through the centre of curvature the it will back in the same path 2 if incident ray fall on pole of mirror the it will law of reflection of light If we fall incident ray parallel to the principle axis it will back at the focus and vica versa

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What is open stomatal pore

Posted by Mohd. Saif 3 years, 8 months ago

CBSE > Class 10 > Science

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Mohd Qamar 3 years, 8 months ago

When h20 enters guard cell it swells

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Write the balanced equation for the following chemical reaction? a) Hydrogen + Chlorine  Hydrogen chloride

Posted by Yuvraj Rathva 3 years, 8 months ago

CBSE > Class 10 > Science

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Dhiya Tojin 3 years, 7 months ago

H2 +cl2 =2Hcl

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✨ 🦋 3 years, 8 months ago

H2+ 2Cl = 2HCl

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What is the full form of ATP?

Posted by Aditya Rana 3 years, 8 months ago

CBSE > Class 10 > Science

4 answers

Thilak Lokesh 3 years, 7 months ago

Adenosine Triphosphate

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Arbaz Class 10 3 years, 7 months ago

Adenosine triphosphate

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Lavanya Kalai 3 years, 8 months ago

ATP - Adenosine Triphosphate

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Aditya Rana 3 years, 8 months ago

Full form of ATP is Adenosine triphosphate

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Suggest ways to prevent carbon dioxide ,carbon monoxide oxides of nitrogen

Posted by Vaibhav Sharma 3 years, 8 months ago

CBSE > Class 10 > Science

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Differentiate b/n aerobic and anaerobic respiration.

Posted by Čutë Βoy 3 years, 8 months ago

CBSE > Class 10 > Science

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Kajal Verma 3 years, 8 months ago

Respiration in the presence of oxygen Respiration in the absence of oxygen

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366089

Posted by Čutë Βoy 3 years, 8 months ago

CBSE > Class 10 > Science

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Explain multiple fission in plasmodium with well labelled diagram

Posted by Mehak Sukhman 3 years, 8 months ago

CBSE > Class 10 > Science

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Raghav wants to connect electrical devices in series with the battery. But his friend advised him to connect these devices in parallel. (a) What are the advantages of connecting electrical devices in parallel instead of connecting them in series? (b) Which value is shown by Shivam’s friend?

Posted by Bhumi Kaur 3 years, 8 months ago

CBSE > Class 10 > Science

3 answers

Kajal Verma 3 years, 8 months ago

In parallel each appliance has its own switch so we can turn on and off as per requirement In series if circuit breaks all appliance will stop working but it is not so in parallel Aal appliance will get equal voltage to work properly in parallel

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Nisha Meena 3 years, 8 months ago

Mg +2Mg

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Nisha Meena 3 years, 8 months ago

Solid

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Which product will be formed when zinc is heated with sulphur powder? And what's it chemical equation?

Posted by Rupinder Kaur 3 years, 8 months ago

CBSE > Class 10 > Science

3 answers

Reetika Mewade 3 years, 8 months ago

Zinc sulphide

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Nisha Bharti 3 years, 8 months ago

When zinc and sulphur power are heart they form zincsulphate it is a exothermic reaction chemical formula is Zn+S ---- ZnS

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ᵛ̲ᴵ̲ᴾ᭄̲̲ ℟̲ᴜ̲ᴅ̲Ʀ̲ᴀ̲༒̲ᵀ̲ᴹ̲ 3 years, 8 months ago

When zinc is heated with sulphur powder ,they mix carefully with each other and the mixture is stable sitting of the laboratory bench. When the mixture is touched with a heated metal rod, however, a violent reaction occurs (the reaction is termed exothermic; producing heat) and zinc sulfide is formed as the product. And the Chemical formula is Zn (s) + S (s) → ZnS (s)

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Some other damages caused by UV radiation from sun

Posted by Akshaya S 3 years, 8 months ago

CBSE > Class 10 > Science

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ᵛ̲ᴵ̲ᴾ᭄̲̲ ℟̲ᴜ̲ᴅ̲Ʀ̲ᴀ̲༒̲ᵀ̲ᴹ̲ 3 years, 8 months ago

UV rays, either from the sun or from artificial sources like tanning beds, can cause sunburn. Exposure to UV rays can cause premature aging of the skin and signs of sun damage such as wrinkles, leathery skin, liver spots, actinic keratosis, and solar elastosis. UV rays can also cause eye problems.

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What is the gram molecular mass of MgSO4?

Posted by Rupinder Kaur 3 years, 8 months ago

CBSE > Class 10 > Science

2 answers

Bharathsai Thamarpalli 3 years, 7 months ago

120.366 g/mol

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Srishty Pandey 3 years, 8 months ago

120.366 g/mol

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Why different metals show different reactivities toward oxygen

Posted by Manish Singh 3 years, 8 months ago

CBSE > Class 10 > Science

2 answers

Lavanya Kalai 3 years, 8 months ago

The descending order of reactivity of metals with oxygen is Mg, Zn, Fe, Pb, Cu. ... Reactivity Series of Metals with Oxygen Experiment. Metal Observation Inference Lead Lead glows brightly. The residue is brown when hot and yellow when cold. Lead has a low reactivity with oxygen. Lead(II) oxide is formed.

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ᵛ̲ᴵ̲ᴾ᭄̲̲ ℟̲ᴜ̲ᴅ̲Ʀ̲ᴀ̲༒̲ᵀ̲ᴹ̲ 3 years, 8 months ago

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Cu + o2=

Posted by Ayush Kr Burnwal 3 years, 8 months ago

CBSE > Class 10 > Science

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Dhiya Tojin 3 years, 7 months ago

2Cu+o2= 2CuO

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Debashrita Sahoo 3 years, 8 months ago

2cu+o2 - - - ->2cuo

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K_Hushii 🍁 3 years, 8 months ago

CUO2

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Ayush Kr Burnwal 3 years, 8 months ago

2cuo

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explain the role of power sharing in maintaining the integrity and unity of a country

Posted by Sneha Chaurasia 3 years, 8 months ago

CBSE > Class 10 > Science

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Anurag Choudhary 3 years, 8 months ago

Role of power sharing in maintaining the integrity and unity of a country are as follow ● Power sharing is the very spirit of deemocracy , therefore for being a country democratic power sharing is very important ●power sharing reduce the chance of conflict among different communities6 ●the chances of democracy will become very less as power is shared among many peoples ●people can know that how they are to be governed

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The following reaction is an example of a 4NH3(g) +502(g) → 4NO(g) + 6H2O(g)

Posted by Rajdeep Singh 3 years, 8 months ago

CBSE > Class 10 > Science