Question

1.
hydrogen.
Q.2 Select the correct answer from A, B, C, D and E for each statement given below:
A: Ammonia
B: Hydrogen chloride C: Hydrogen D: Nitrogen dioxide
State the gaseous product formed, when -
An active metal reacts with dilute sulphuric acid.
2. A metallic nitrate undergoes thermal decomposition giving a coloured gas, nito
itsuse
3. Two gases one of them neutral, combines by absorption of light energy.
4. An ammonium salt reacts with an alkali.
5.
An exothermic reaction takes place between ammonia and a neutral gas.
Q.3 Give a balanced equation for each of the following types of reactions:
1. A direct combination reaction between phosphorus and a neutral gas.
2. A soluble salt of lead formed from an insoluble base by double decomposition - neu
3. A thermal decomposition reaction of a salt - which results in the formation of nitrog
4. A synthesis reaction between a metal & a non-metal resulting in formation of an inso
5. A decomposition reaction of a salt which leaves behind a silvery metal.
2.4 Differentiate between the following:
Synthesis reaction & a substitution reaction.
2. Electrolytic decomposition & photochemical decomposition.
3. Thermal decomposition & thermal dissociation.
4. Decomposition reaction & a double decomposition reaction
5. Neutralization reaction & a precipitation reaction.
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Answer 1

Answer:

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