(D) The mercury cell is a primary cell,meaning it cannot be recharged and reused once the reactants are consumed. Therefore,the statement that it can

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Mercury cell can be used as a secondary cell.

(D) The mercury cell is a primary cell,meaning it cannot be recharged and reused once the reactants are consumed. Therefore,the statement that it can be used as a secondary cell is incorrect. All other statements are correct: electrochemical reactions are generally efficient,fuel cells convert chemical energy directly to electrical energy,and hydrogen is a clean,renewable energy source.

Class 12 Chemistry Electrochemistry Electrochemical cells

Medium

Which of the following statements is incorrect?

A
Electrochemical reactions are energy efficient and less polluting.
B
Fuel cell converts chemical energy into electrical energy.
C
Hydrogen can be used as a renewable and non-polluting source of energy.
D
Mercury cell can be used as a secondary cell.

Explore More

Browse All

Question Bank

All Subjects

Class 12 Questions

Class 12

Chemistry Questions

Chapter

Electrochemistry

Subtopic

Electrochemical cells

Give the cell reaction,cell representation,and the formula for the cell potential of a copper-silver galvanic cell.

Medium

View Solution

Saturated solution of $KNO_3$ is used to make salt bridge because

Difficult

View Solution

Depict the galvanic cell in which the reaction $Zn_{(s)} + 2Ag^{+}_{(aq)} \rightarrow Zn^{2+}_{(aq)} + 2Ag_{(s)}$ takes place,further show:
$(i)$ which of the electrode is negatively charged,
$(ii)$ the carriers of the current in the cell,and
$(iii)$ individual reaction at each electrode.

Medium

View Solution

Explain the symbolic representation of a galvanic cell (electrochemical cell) with a suitable example.

View Solution

Select the incorrect option,when a lead storage battery is discharged $-$

Medium

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

Which of the following statements is incorrect?

Similar Questions

Give the cell reaction,cell representation,and the formula for the cell potential of a copper-silver galvanic cell.

Saturated solution of $KNO_3$ is used to make salt bridge because

Depict the galvanic cell in which the reaction $Zn_{(s)} + 2Ag^{+}_{(aq)} \rightarrow Zn^{2+}_{(aq)} + 2Ag_{(s)}$ takes place,further show:$(i)$ which of the electrode is negatively charged,$(ii)$ the carriers of the current in the cell,and$(iii)$ individual reaction at each electrode.

Explain the symbolic representation of a galvanic cell (electrochemical cell) with a suitable example.

Select the incorrect option,when a lead storage battery is discharged $-$

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Depict the galvanic cell in which the reaction $Zn_{(s)} + 2Ag^{+}_{(aq)} \rightarrow Zn^{2+}_{(aq)} + 2Ag_{(s)}$ takes place,further show:
$(i)$ which of the electrode is negatively charged,
$(ii)$ the carriers of the current in the cell,and
$(iii)$ individual reaction at each electrode.