EASY

Earn 100

On reaction of sodium hydroxide with Iron(II) ion gives the coloured precipitate. Tell the colour.

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Important Questions on In the Lab

HARD

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

Which of the following will not produce a precipitate with

{AgNO}_{3}

solution?

HARD

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

Which reagent below would enable you to remove sulphate ions from a solution containing both sulphate and chloride ions

EASY

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

What happens when barium chloride reacts with dilute sulphuric acid?

MEDIUM

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

When

C O_{2}

is passed into lime water it turns milky. When excess of

C O_{2}

is passed, milkyness disappears because

MEDIUM

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

Which of the following pairs would be expected to form precipitate when solution are mixed

MEDIUM

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

Some reactions are given for salt(X).

Which of the following salt can be satisfied all the conditions?

EASY

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

Solution of II A group precipitate in dil.

H N O_{3}

when treated with

N H_{4} O H

becomes blue because of the presence of

EASY

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

Complete the following equation:

$2 NaCl + H_{2} {SO}_{4} (conc .) \to {Na}_{2} {SO}_{4} + 2$ _____ $(g)$ .

EASY

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

Which of the following doesn't give a ppt. with silver nitrate solution.

MEDIUM

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

What is dry heating test?

HARD

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

An aqueous solution of colourless metal sulphate

M

, gives a white precipitate with

N a O H

. This was soluble in excess of

N a O H

. On passing

H_{2} S

through this solution a white precipitate is formed. The metal

M

in the salt is:

EASY

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

On adding excess of ammonium hydroxide to a copper sulphate solution

HARD

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

A solution of colourless salt H on boiling with excess NaOH produces a non-flammable gas. The gas evolution ceases after sometime upon addition of Zn dust to the same solution, the gas evolution restarts. The colourless salt(s) H is (are):

MEDIUM

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

Aqueous solution of a salt when treated with

A g N O_{3}

solution gives a white precipitate, which dissolves in dilute

N H_{4} O H

. Radical present in the salt is

EASY

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

Barium chloride reacts with dilute sulphuric acid to give a yellow precipitate of barium hydroxide.

MEDIUM

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

Zinc on reaction with NaOH gives a salt A along with a gas X and A on reaction with a gas Y gives white precipitate W. Which of the following is correct ?

EASY

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

Cotyledons are also called-

MEDIUM

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

What happens when copper metal is heated with concentrated sulphuric acid?

MEDIUM

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

In the dry flame test, barium ion gives blue colour.

MEDIUM

Chemistry>Inorganic Chemistry>In the Lab>Testing for Ions in the Lab

On addition of aqueous