CHEMISTRY ONLINE TEST 10

1 / 10

Which of the following alkaline earth metals does not give color to the flame?

2 / 10

Milk of magnesia is chemically —

MgCl₂

MgCO₃

MgSO₄

Mg(OH)₂

3 / 10

Which of the following is used in the preparation of plaster of Paris?

CaSO₄.2H₂O

CaSO₄·½H₂O

CaO

CaCO₃

4 / 10

Which alkali metal has the highest hydration enthalpy?

Li⁺

Na⁺

K⁺

Cs⁺

5 / 10

The flame color of potassium is —

Crimson red

Yellow

Brick red

Violet

6 / 10

Which of the following forms a peroxide on reacting with oxygen?

7 / 10

Which alkali metal carbonate is thermally most stable?

Cs₂CO₃

Li₂CO₃

K₂CO₃

Na₂CO₃

8 / 10

LiCl dissolves in organic solvents because —

Ionic

It is covalent

Has large ions

Insoluble in water

9 / 10

The most electropositive element among the following is —

10 / 10

Which of the following elements is not an alkali metal?

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CHEMISTRY ONLINE TEST 10

CHEMISTRY ONLINE TEST 10 FOR JEE NEET AND EAPCET EXAMS

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