Which of the following statement is incorrect? - Vidyadip

MCQ

Which of the following statement 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
✓
Mercury cell can be used as a secondary cell

✓

Answer

Correct option: D.

Mercury cell can be used as a secondary cell

d

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The treatment of zinc with very dilute nitric acid produces

Which of the following statements is false ?

Aniline on treatment with excess of bromine water gives

Which of the following transitional metal has lowest density

The increasing order of $pK_b$ for the following compounds will be

Artificial sweetner that is unstable at cooking temperature is

At $298\,K$, the equilibrium constant is $2 \times 10^{15}$ for the reaction.

$Cu ( s )+2 Ag ^{+}( aq ) \rightleftharpoons Cu ^{2+}( aq )+2 Ag ( s )$

The equilibrium constant for the reaction.$\frac{1}{2} Cu ^{2+}( aq )+ Ag ( s ) \rightleftharpoons \frac{1}{2} Cu ( s )+ Ag ^{+}( aq )$ is $x \times 10^{-8}$. The value of $x$ is (Nearest Integer)

In the above reaction. Left hand side and right hand side rings are named as ' $A$ ' and ' $B$ ' respectively. They undergo ring expansion. The correct statement for this process is:

Identify the correct option

major product $A$ and reaction $R$ are :