Kerala Board Solutions for Chapter: Basic Constituents of Matter, Exercise 6: Exercise 6

The chemical formula of sulphuric acid is ${\mathrm{H}}_2{\mathrm{SO}}_4$. How many hydrogen atoms are present in one molecule of sulphuric acid?

The chemical formula of sulphuric acid is ${\mathrm{H}}_2{\mathrm{SO}}_4$. How many sulphur atoms are present? How about oxygen atoms?

The chemical formula of sulphuric acid is ${\mathrm{H}}_2{\mathrm{SO}}_4$.  Altogether, how many atoms are present? What if it is $2{\mathrm{H}}_2{\mathrm{SO}}_4$? Determine the total number of atoms present in the molecules given below:

${\mathrm{CO}}_2$

$2{\mathrm{C}}_{12}{\mathrm{H}}_{22}{\mathrm{O}}_{11}$

$5{\mathrm{H}}_2\mathrm{O}$ 

$3\mathrm{NaCI}$

$7{\mathrm{NH}}_3$

${\mathrm{ZnCl}}_2$

Write the symbol of the element, zinc. What is the chemical formula of hydrochloric acid?

You have seen earlier the reaction between hydrochloric acid and zinc. What are formed as a result of this reaction?

Zinc $+$ Hydrochloric acid $\to$ Zinc chloride $+$ Hydrogen gas $\uparrow$