Lakhmir Singh and Manjit Kaur Solutions for Chapter: Chemical Reactions And Equations, Exercise 9: Multiple Choice Questions (MCQs)

In order to prevent the spoilage of potato chips, they are packed in plastic bags in an atmosphere of:

A white precipitate can be obtained by adding dilute sulphuric acid to:

A white precipitate will be formed if we add common salt solution to:

Consider the following equation of the chemical reaction of a metal M:

$4\mathrm{M}+3{\mathrm{O}}_2\to 2{\mathrm{M}}_2{\mathrm{O}}_3$
This equation represents :

The process of respiration is:

Which of the following can be decomposed by the action of light?

Consider the reaction:

$\mathrm{KBr}\left(\mathrm{aq}\right)+{\mathrm{AgNO}}_3\left(\mathrm{aq}\right)\to {\mathrm{KNO}}_3\left(\mathrm{aq}\right)+\mathrm{AgBr}\left(\mathrm{s}\right)$

This is an example of:

You are given the following chemical equation:

$\mathrm{Mg}\left(\mathrm{s}\right)+\mathrm{CuO}\left(\mathrm{s}\right)\to \mathrm{MgO}\left(\mathrm{s}\right)+\mathrm{Cu}\left(\mathrm{s}\right)$

This equation represents: