Essential constituent of an amalgam is - Vidyadip

MCQ

Essential constituent of an amalgam is

A
Iron
B
An alkali metal
C
Silver
✓
Mercury

✓

Answer

Correct option: D.

Mercury

d
It’s Obvious.

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

More "M.C.Q (1 Marks)" from 4. d and f- block elements→4. d and f- block elements — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

An optically active compound $'X'$ having molecular formula $C_4H_8O_3$ it evolves $CO_2$ with $NaHCO_3$.$'x'$ on treatment with $LiAlH_4$ gives achiral compound then $'x'$ is

The unbalanced chemical reactions given in List $I$ show missing reagent or condition $(?)$ which are provided in List $II$. Match List $I$ with List $II$ and select the correct answer using the code given below the lists :

List $I$	List $II$
$P.$ $PbO _2+ H _2 SO _4 \xrightarrow{?} PbSO _4+ O _2+$ other product	$1.$ NO
$Q.$ $Na _2 S _2 O _3+ H _2 O \xrightarrow{?} NaHSO _4+$ other product	$2.$ $I_2$
$R.$ $N _2 H _4 \xrightarrow{\text { ? }} N _2+$ other product	$3.$ Warm
$S.$ $XeF _2 \xrightarrow{?} Xe +$ other product	$4.$ $Cl _2$

Codes: $ \quad P \quad Q \quad R \quad S $

In the following reaction
Carbonyl compound $ + MeOH\overset {HCl} \longleftrightarrow {\text{acetal}}$

Rate of the reaction is the highest for

The correct order of basicity for PYRROLE (A), PYRIDINE (B), PIPERIDINE(C) is:

$\mathop {\xrightarrow{{{I_2}/NaOH}}}\limits_\Delta \xrightarrow{{{H^ + }}}\xrightarrow{\Delta }A,$

$A$ is

Which alky halide has maximum density?

Phenol on distillation with zinc dust gives

The main product of following reaction will be

For a $d ^{4}$ metal ion in an octahedral field, the correct electronic configuration is:

For the reaction $A + B \to $ products, what will be the order of reaction with respect to $A$ and $B$ ?

Exp.	$[A]\,(mol\,L^{-1})$	$[B]\,(mol\,L^{-1})$	Initial rate $(mol\,L^{-1}\,s^{-1})$
$1.$	$2.5\times 10^{-4}$	$3\times 10^{-5}$	$5\times 10^{-4}$
$2.$	$5\times 10^{-4}$	$6\times 10^{-5}$	$4\times 10^{-3}$
$3.$	$1\times 10^{-3}$	$6\times 10^{-5}$	$1.6\times 10^{-2}$