Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Which of the following statements is not correct? (i) Copper liberates hydrogen from acids. (ii) In its higher oxidation states, manganese forms stable compounds with oxygen and fluorine.

Which of the following statements is not correct?

(i) Copper liberates hydrogen from acids.

(ii) In its higher oxidation states, manganese forms stable compounds with oxygen and fluorine.

(iii) \text {Mn}^{3+}\; \text {and} \; \text {Co}^{3+} are oxidising agents in aqueous solution.

(iv) \text {Ti}^{2+}\; \text {and} \; \text {Cr}^{2+} are reducing agents in aqueous solution.

Answers (1)

The answer is the option (i). There is no liberation of hydrogen from acids when copper is added.

\text {Cu}+\text{2H}_{2}\text {SO}_{4}\rightarrow \text {CuSO}_{4}+\text {SO}_{2}+\text {2H}_{2}\text {O}

\text {3Cu}+\text{8HNO}_{3}\rightarrow \text {3Cu}(NO_{3})_{2}+\text {2NO}+\text {4H}_{2}\text {O}

Posted by

infoexpert23

View full answer

Similar Questions

Latest Question