Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

MEDIUM

Earn 100

When some amount of zinc is treated separately with excess of sulphuric acid and excess of sodium hydroxide solution, the ratio of volumes of hydrogen evolved is

50% studentsanswered this correctly

Important Questions on Acids, Bases and Salts

MEDIUM

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

The colour of

K M n O_{4}

is due to: [where

M \to

metal,

L \to

ligand]

MEDIUM

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

Consider the following statements relating to Sea Salinity:
1. The ocean salinity depends on evaporation and precipitation.
2. Any change in the temperature or density influences the salinity.
3. Major source of sea salinity of terrestrial discharge by rivers.
Which of the statements given above are correct? Select the correct answer using the codes below:

MEDIUM

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

In the given reaction cycle

Question Image

$X, Y$ and $Z$ respectively are

MEDIUM

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

When

X O_{2}

is fused with an alkali metal hydroxide in presence of an oxidizing agent such as

{KNO}_{3}

; a dark green product is formed which disproportionate in acidic solution to afford a dark purple solution.

X

is:

EASY

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

Write a balanced chemical equation the following reaction:

Action of dilute sulphuric acid on zinc sulphide.

MEDIUM

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

Which of the following statements is/are false?

EASY

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

Monosodium glutamate is commonly known as

EASY

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

Which of the following combinations will produce

H_{2}

gas?

EASY

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

Which of the following elements’ salts are most soluble?

EASY

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

Which one of the following chemical reactions is not feasible?

MEDIUM

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

Name the gas that can readily decolourise acidified

{KMnO}_{4}

solution.

EASY

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

In the preparation of baking soda,

H_{2} O

and

{CO}_{2}

in ratio is used to react with

{Na}_{2} {CO}_{3}

.

MEDIUM

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

Aqueous solution of metallic nitrate

X

reacts with

N H_{4} O H

to form Y which dissolves in excess

N H_{4} O H

. The resulting complex is reduced by acetaldehyde to deposit the metal.

X

and

Y

respectively, are

HARD

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

Which one of the following statements is correct when

S O_{2}

is passed through acidified

K_{2} C r_{2} O_{7}

solution?

MEDIUM

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

Which of the following is not formed when H₂S reacts with acidic K₂Cr₂O₇ solution ?

EASY

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

The sum of the total number of bonds between chromium and oxygen atoms in chromate and dichromate ions is ______________.

MEDIUM

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

Fusion of

M n O_{2}

with

K O H

in presence of

O_{2}

produces a salt

W .

Alkaline solution of

W

upon electrolytic oxidation yields another salt

X .

The manganese containing ions present in

W

and

X,

respectively, are

Y

and

Z .

Correct statement(s) is (are)

EASY

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

A mixture of sodium chloride (salt) and ammonium chloride can be separated by

MEDIUM

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

Write a balanced equation for the preparation of the following salt: Copper sulphate from Copper carbonate.

EASY

Science>Chemistry>Acids, Bases and Salts>Preparation of Salts

Which of the following gases turn water milky?