Occurence of Sulphuric Acid

Q.

What is the reaction of nitrogen dioxide with water?

Q.

Odour of sulphur dioxide

Q.

Which gas is formed when sulphur burns in air?

1. Sulphur dioxide

2. Sulphur trioxide

3. Sulphur monoxide
4. Carbon monoxide

Q.

Hydrogen sulphide gets oxidised to ___by conc. sulphuric acid.

Q.

Sulphuric acid is also known as the "___".

1. king of elements

2. queen of chemicals

3. knight of acids

4. king of chemicals

Q.

White vitriol is a hydrated sulphate of which one of the following metals?

1. Lead

2. Zinc

3. Aluminium

4. Ferric

Q.

The following statement is correct only under certain conditions. Rewrite the statement including the appropriate conditions.
Oxalic acid reacts with sulphuric acid to produce carbon monoxide and carbon dioxide.

Q.

Sulphur dioxide gas can be formed by:

1. Burning coal.

2. Burning paper.

3. Burning wood.

4. None of these.

Q.

Carbon dioxide gas evolves when HCl acid is added to:

1. Calcium hydroxide

2. Iron (II) sulphide

3. Calcium carbonate

4. Sodium sulphite

Q. Metal carbonates and bicarbonates react with acids to produce salt, water and a gas ‘G’. Now, choose the correct statement(s) about gas ‘G’.

धातु कार्बोनेट तथा बाइकार्बोनेट अम्लों के साथ अभिक्रिया करके लवण, जल तथा गैस ‘G’ बनाते हैं। अब, गैस ‘G’ के सन्दर्भ में सही कथन/कथनों का चयन कीजिए।

1. It reacts with slaked lime to give a white-coloured precipitate
   
   यह बुझे चूने के साथ अभिक्रिया करके सफेद रंग का अवक्षेप देता है
2. Its aqueous solution turns phenolphthalein pink
   
   इसका जलीय विलयन फीनॉल्फ्थेलिन को गुलाबी कर देता है
3. It is released when baking powder is mixed in water
   
   यह गैस तब मुक्त होती है जब बेकिंग पाउडरको जल में मिलाया जाता है
4. It burns with a pop sound when a burning matchstick is brought near it
   
   इसके समीप जलती हुई माचिस की तीली लाने पर यह फट-फट ध्वनि के साथ जलती है

Q.

To produce sulphuric acid by contact process they use h2so4 instead of water why?

Q.

Which gas is evolved when green vitriol is heated?

1. Oxygen

2. Hydrogen

3. Sulphur trioxide

4. Ferrous

Q.

How are the following conversions brought about? Give equations and conditions:
(i) Sulphur trioxide to sulphuric acid.
(ii) Sulphur trioxide to oleum.
(iii) Dilute sulphuric acid to hydrogen.
(iv) Aqueous barium chloride to barium sulphate.
(v) Aqueous lead nitrate to lead sulphate.
(vi) Sodium chloride to hydrogen chloride.
(vii) Sucrose to sugar charcoal.
(viii) Oxalic acid to carbon monoxide.

Q.

How does sulphuric acid occur in nature?

Q. Which of the following reactions are examples of calcination?

1. ${\mathrm{CaCO}}_3\left(s\right)\to \mathrm{CaO}\left(s\right)+{\mathrm{CO}}_2\left(g\right)$

2. $4{\mathrm{FeS}}_2\left(s\right)+11O_2\left(g\right)\to 2{\mathrm{Fe}}_2{O}_3\left(s\right)+8{\mathrm{SO}}_2\left(g\right)$

3. $$ 2\mathrm{Al}{\left(\mathrm{OH}\right)}_3\left(s\right)\to {\mathrm{Al}}_2{O}_3\left(s\right)+3H_{2}O\left(g\right)$\left(\right)$

4. $$ \mathrm{CuS}\left(s\right)+{\mathrm{CuSO}}_4\left(\mathrm{aq}\right)\to 2\mathrm{Cu}\left(s\right)+2{\mathrm{SO}}_2\left(g\right)$\left(\right)$

Q.

Sulphuric acid is a constituent of acid rain which is formed by atmospheric oxidation of?

1. Sulphur trioxide

2. Hydrogen sulphide

3. Sulphur monoxide
4. Sulphur dioxide

Q. Name the following:
(a) a green coloured carbonate.
(b) a steel grey coloured solid non-metal.
(c) a nitrate which has no water of crystallization.
(d) a sulphate insoluble in water.

Q.

Sulphuric acid is also known as the "___".

1. queen of chemicals

2. king of chemicals

3. king of elements

4. knight of acids

Q. Sulphuric acid can be formed naturally by oxidation of .

1. Sulphur trioxide
2. Hydrogen sulphide
3. Iron sulphide

Q.

Identify the Gas C has an offensive smell like rotten eggs.

1. Sulphur dioxide

2. Hydrogen sulphide

3. Ammonia gas

4. Carbon dioxide

5. Nitrous oxide

Q.

What is the equation for the following reaction?

Sulphur and hot concentrated nitric acid

1. 

2. 

3. 

4. 

Q.

Which of the given sulphur compounds was obtained by the dry distillation of CuSO₄.5H₂O?

1. SO₂

2. SO₃

3. SO₄

4. S₂O₄

Q.

Separate out exothermic and endothermic process from the following:

Temperature of water increases on adding sulphuric acid to it.

Q.

Which gas is evolved when green vitriol is heated?

1. Oxygen

2. Ferrous

3. Hydrogen

4. Sulphur trioxide

Q. Complete the following reaction that aids in the formation of acid rain.
+ [O]+H2O→H2SO4

1. ${\mathrm{NO}}_2$
2. ${\mathrm{SO}}_3$
3. ${\mathrm{SO}}_2$

Q.

how is number of atom is decided to written in a eqation ?like hydrogen sulphate as H_{​​​​​​2}​​​SO_​​​4 not HSO_{​​​​ 4} or H2_{​​​​​H2SO3}

Q.

how is soil alkaline?

Q. What is aqua regia? Which acid is present in it?

Q.

Arrange the following process of formation of H₂SO₄ on the planet Venus in the sequence of occurrence.

I.The reaction of Sulphur dioxide with atomic oxygen to form Sulphur trioxide.

II.Sun's photochemical action on carbon dioxide to form carbon monoxide and atomic oxygen.

III.The reaction of Sulphur trioxide with water to form sulphuric acid.

1. I, II, III

2. III, II, I

3. II, III, I

4. II, I, III

Q.

Dust chamber removes dust by :

1. Passing air at high speed

2. Spraying water

3. Centrifugal force

4. Creating electric field