Question

Read the passage and answer the question asked: The reaction between MnO2 with HCI is depicted in the following diagram. It was observed that a gas with bleaching abilities was released.

1 The chemical reaction between MnO2 and HCI is an example of:
a) displacement reaction. b) combination reaction c) redox reaction d) decomposition reaction.

2 Chlorine gas reacts with ____to form bleaching powder.
a) dry Ca (OH)2 c) conc. solution of Ca b) dil. solution of Ca (OH) d) dry Cao

3 Identify the correct statement from the following:
a) MnO2 is getting reduced whereas HCI is getting oxidized b) MnO₂ is getting oxidized whereas HCI is getting reduced. c) MnO2 and HCl both are getting reduced. d) MnO2 and HCl both are getting oxidized.

4 In the above discussed reaction, what is the nature of MnO2?
a) Acidic oxide c) Neutral oxide b) Basic oxide d) Amphoteric oxide

5 What will happen if we take dry HCI gas instead of aqueous solution of HCI?
a) Reaction will occur faster. b) Reaction will not occur. c) Reaction rate will be slow d) Reaction rate will remain the same.​

Answer 1

her is things and some additional one

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Answer 2

The questions asked are answered below:

The reaction between MnO₂ with HCl is depicted below:

$MnO_{2}(s)+4HCl(aq) \rightarrow MnCl_{2}(aq)+2H_{2}O(l)+Cl_{2}(g)$

1 The chemical reaction between MnO₂ and HCI is an example of: c) redox reaction.

In the chemical reaction between MnO₂ and HCI, manganese oxide is getting reduced while hydrochloric oxide is getting oxidised.

2 Chlorine gas reacts with a) dry Ca(OH)₂ to form bleaching powder.

When chlorine gas is passed through dry calcium hydroxide, bleaching powder is formed along with water as follows:

$Ca(OH)_{2}+Cl_{2} \rightarrow Ca(OCl_{2})+H_{2}O$

3 Identify the correct statement from the following: a) MnO₂ is getting reduced whereas HCI is getting oxidized

In MnO₂, manganese accepts two electrons and gets reduced to Mn⁺² while the chloride in HCI donates two electrons and gets oxidised to chlorine.

4 In the above discussed reaction, the nature of MnO₂ is b) Basic oxide.

Most of the oxides formed by metals are basic in nature. As manganese oxide reacts with an acid, it is basic in nature, since acids cannot react with acids. Also, the oxidation state of Mn in MnO₂ is +2, which further determines that MnO₂ is a basic oxide.

5 If we take dry HCI gas instead of aqueous solution of HCI, b) Reaction will not occur.

As given earlier, in the reaction between manganese oxide and hydrochloric acid, the chloride ion will donate its electrons to manganese. However, if hydrochloric acid is present in the dry state, then ions would not be formed in HCl. Thus, no reaction will take place.