Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • 5 g of zinc is treated separately with an excess of (a) dilute hydrochloric acid and (b) aqueous sodium hydroxide The ratio of the volumes of <img alt="H_{2}" src="htt

5 g of zinc is treated separately with an excess of

(a) dilute hydrochloric acid and

(b) aqueous sodium hydroxide

The ratio of the volumes of H_{2} evolved in these two reactions is :

Option: 1

1:2


Option: 2

1:4


Option: 3

1:1

 


Option: 4

2:1


Answers (1)

best_answer

\\\( \mathrm{Zn}+2 \mathrm{NaOH} \longrightarrow \mathrm{Na}_{2} \mathrm{ZnO}_{2}+\mathrm{H}_{2} \) \\\( \mathrm{Zn}+2 \mathrm{HCl} \longrightarrow \mathrm{ZnCl}_{2}+\mathrm{H}_{2} \)

According to stoichiometry in both the reactions, an equal number of moles of H2 are evolved.

Hence, the Option number (3) is correct.

Posted by

Ajit Kumar Dubey

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

Four Kashmiri girls defy the odds, score 99+ percentile in JEE Main 2025
anam-khan

JEE, NEET, CUET coaching centres: Assam, Rajasthan have framed laws, but will they work?
anam-khan

JEE Main 2025 withheld results declared; NTA issues show cause notices ahead of action

Latest Question