PDF chapter test TRY NOW
1. Complete the missing components/variables given as 'x' and 'y' in the following reactions.
Zn(s) + H_2SO_4(aq) → ZnSO_4(x) + H_2(y)
Zn(s) + H_2SO_4(aq) →
In the above reaction, x is the state of zinc sulphate, and y is hydrogen's state.
2. Which among the following changes are exothermic or endothermic in nature?
Dissolution of sodium hydroxide in water.
NaOH + H_2O → Na^+ + OH^− + H_2O +
The dissolution of sodium hydroxide in water is because it involves the evolution of heat.
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