Z n^ 2 + _ (aq) + 2e , ,Zn_ (s) . This is - Vidyadip

MCQ

$Z{n^{2 + }}_{(aq) } + 2e\, \to \,Zn_{(s)}.$ This is

A
Oxidation
✓
Reduction
C
Redox reaction
D
None of these

✓

Answer

Correct option: B.

Reduction

(b)$\mathop {Z{n_{(aq)}}}\limits^{2 + \,\,\,\,\,} + 2{e^ - } \to \mathop {Z{n_{(s)}}}\limits^{0\,\,\,\,} $ reduction.

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

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

Similar questions

An organic liquid A containing $C,H$ and $O$ has a pleasant odour with a boiling point of ${78\,^o}C$ On boiling A with conc. ${H_2}S{O_4}$ a colourless gas is produced which decolourises bromine water and alkaline $KMn{O_4}.$ One mole of this gas also takes one mole of ${H_2}.$ The organic liquid $ A$ is

Which of the esters shown after reduction with $LiAlH_4$ and aqueous workup, will yield two molecules of only a single alcohol ?

In which of the following compounds $B-F$ bond length is shortest?

Lactose on hydrolysis gives

Assertion : When a salt such as $NaCl$ dissolves, the $Na^+$ and $Cl^-$ ions leaving the crystal lattice acquire far greater freedom.
Reason : In thermodyanamic terms, the formation of solution occurs with a favourable change in free energy, i.e., $\Delta H$ has a high positive value and $T\Delta S$ a low negative value.

The newmann projection formula of most stable conformation of $3-$ hydroxypropanal is gauche. It is stable due to

What mass of $95\, \%$ pure $CaCO _{3}$ will be required to neutralise $50 \,mL$ of $0.5\, M \,HCl$ solution according to the following reaction? (In $g$)

$CaCO _{3( s )}+2 HCl _{( aq )} \rightarrow CaCl _{2( aq )}+ CO _{2( g )}+2 H _{2} O _{( l )}$

[Calculate upto second place of decimal point]

Which of the following substances has covalent bonding

If solubility of $NaCl$ at ${20\,^o}C$ is $35\,gm$ per $ 100\,gm$ of water. Then on adding $50\,gm$ of $NaCl$ to the same volume at same temperature the salt remains undissolved is .......... $gm$.

Cis-trans isomerism is exhibited by