CHEMISTRY ONLINE TEST 11

1 / 10

Which compound is formed when sodium metal is burnt in excess oxygen?

Na₂O₂

Na₂O

NaO₂

NaOH

2 / 10

BeCl₂ is covalent while BaCl₂ is ionic because —

Be has high ionization energy

Ba has small size

Ba has low ionization enthalpy

Be²⁺ ion has small size and high polarizing power

3 / 10

Which of the following is used to remove permanent hardness of water?

CaCO₃

Na₂CO₃

Mg(OH)₂

Ca(OH)₂

4 / 10

The solubility of hydroxides of Group 2 elements —

Remains constant

First decreases then increases

Decreases down the group

Increases down the group

5 / 10

Slaked lime is —

Cao

Ca(OH)₂

CaCO₃

CaSO₄

6 / 10

Quick lime is —

Ca(OH)₂

CaCO₃

CaO

CaSO₄

7 / 10

Which of the following oxides is amphoteric?

MgO

CaO

SrO

BeO

8 / 10

Which alkali metal reacts most vigorously with water?

Cs

Na

K

Li

9 / 10

Which of the following compounds shows diagonal relationship with magnesium?

Na₂CO₃ and MgCO

Li₂CO₃ and MgCO₃

K₂CO₃ and MgCO

Rb₂CO₃ and MgCO₃

10 / 10

The anomalous behavior of lithium is due to —

Its small size and high polarizing power

Its high atomic mass

Presence of d-orbitals

Low ionization enthalpy

Your score is

The average score is 0%

0%

Google News	@WHATSAPP
@TELEGRAM	@FACEBOOK

CHEMISTRY ONLINE TEST 11

Chemistry online test 11 for JEE NEET AND EAPCET EXAMS.

About Saheb Shaik

Chemistry online test 11 for JEE NEET AND EAPCET EXAMS.

Related Posts

About Saheb Shaik