Question

Which of the following statement(s) is/are true for $HCl$?
(i) It turns methyl orange red.
(ii) It turns turmeric paper red.
(iii) It reacts with zinc and a gas is evolved.
(iv) It reacts with solid sodium carbonate to give brisk effervescence.

• A. (i) and (ii) only
• B. (i) and (iii) only
• C. (i), (iii) and (iv) only
• D. (iii) and (iv) only

Answer 1

The correct option is C (i), (iii) and (iv) only

$HCl$ is an acid which turns methyl orange red.
It reacts with $Zn$ to produce hydrogen gas.
$Zn+HCl\to ZnC{l}_2+H_2\uparrow$
When HCI reacts with sodium carbonate, carbon dioxide gas is evolved with brisk effervescence.
$N{a}_{2}C{O}_3+2HCl\to 2NaCl+H_{2}O+C{O}_2\uparrow$
Basic compound turns turmeric paper red.