Anshu Suri Gulati Solutions for Chapter: Chemical Changes and Reactions, Exercise 2: Self Evaluation Test

Complete and balance the equation.

${\mathrm{CuCO}}_3 \stackrel{∆}{\to }$ _____ $+$ _____

Complete and balance the equation.

${\mathrm{NaNO}}_3 \stackrel{∆}{\to }$ _____ $+$ _____

Complete and balance the equation.

$\mathrm{CO} + {\mathrm{O}}_2 \to$ _____ 

Complete and balance the equation.

${\mathrm{P}}_2{\mathrm{O}}_5+{\mathrm{H}}_2\mathrm{O} \to$ _____

Choose the correct type of chemical reaction.

${\mathrm{FeSO}}_4 + 2\mathrm{NaOH} \to \mathrm{Fe}(\mathrm{OH}{)}_2 + {\mathrm{Na}}_2{\mathrm{SO}}_4$

Give one word for the chemical reaction in which heat is evolved.

Give one word for the substance which increases the rate of reaction without itself undergoing any change.

Give one word for the minimum temperature at which a substance starts burning.