Baljinder Kaur Solutions for Chapter: Practice Paper-1, Exercise 1: UNSOLVED PRACTICE PAPERS FOR REVISION

Gases ${\mathrm{Cl}}_2$, ${\mathrm{N}}_2$, ${\mathrm{NH}}_3$, ${\mathrm{SO}}_2$ are collected under same conditions of temperature and pressure $20 \mathrm{L}$ of ${\mathrm{N}}_2$ contains $\mathrm{X}$ molecules. Complete the table.

Give balanced equations for electrode reactions involved in the following conversation:

 $\mathrm{Cu}$ metal $\to$$\mathrm{Cu}$ ions $\to$$\mathrm{Cu}$ metal

Using $\mathrm{HCl}$ how would you convert sodium bisulphite to suphur dioxide ?

Using $\mathrm{HCl}$ how would you convert concentrated nitric acid to nitrosyl chloride ?

An example of a salt which is not hydrated is _____

Calculate the mass of $56 {\mathrm{cm}}^3$ of carbon monoxide at $\mathrm{STP}$ ? $\left(\mathrm{C}=12\mathrm{u}, \mathrm{O}=16\mathrm{u}\right)$

Name an inorganic liquid which in pure state is almost a non-conductor of electricity.

Fumes are seen when a bottle of hydrochloric acid is opened. Give reason.