ECAT Pre Engineering Chemistry Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 14 Group IIIA & IVA Elements

Try The MCQ's Test For ECAT Chemistry Chapter 14 Group IIIA & IVA Elements

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ECAT Chemistry Chapter 14 Group IIIA & IVA Elements

00:00
Question # 1

LiOH ______ soluble than NaOH

Question # 2

Pb has inert pair of electrons:

Question # 3

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

Question # 4

Boric acid cannot be used:

Question # 5

Which one of the following properties is not correct for ozone?

Question # 6

Which is litharge or massicot?

Question # 7

Sodium forms largely

Question # 8

Which of the following is a tetrabasic acid?

Question # 9

In the earth crust sodium is

Question # 10

What is chrome yellow?

Question # 11

Gypsum is applied to the soil to provide calcium and

Question # 12

Hybridized in carbon is:

Question # 13

Identify the incorrect statement with respect to ozone

Question # 14

The formula of lime stone is

Question # 15

On alkali and alkaline earth metals down the group, there is decreasing trend in

Question # 16

Density of aluminium is (g cm-3):

Question # 17

The structure of white phosphorus is

Question # 18

Which of the following sulphates is not soluble in water

Question # 19

Sodium hexametaphophate is known as

Question # 20

The element which has a simple cubic lattice in solid state is

Question # 21

The number of unpaired electrons in the p-subshell of oxygen atom

Question # 22

Crystalline form of sulphur stable at room temperature is

Question # 23

Which element has highest oxidation potential

Question # 24

Which metal of Group-II A of the periodic Table, will form the least ionic chloride

Question # 25

In a group IIA from top to bottom as the atomic number increases, there is regular decreases in

Question # 26

Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is

Question # 27

Oleum is

Question # 28

Polyanion formation is maximum in

Question # 29

Which carbonate of alkali metals is insoluble in water

Question # 30

Sulphuric acid reacts with PCl5to give

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Lithium reacts with air to form
A. Peroxide
B. Normal oxide
C. Superoxide
D. None of these
2 Calcium carbide reacts with water to produce
A. Acetylene
B. Methane
C. Ethylene
D. Ethane
3 Electron affinity of sulphur is
A. More than O and Se
B. More than O but less than Se
C. Less than O but more than Se
D. Equal to O and Se
4 Which of the following sulphates is not soluble in water
A. Sodium sulphate
B. Potassium sulphate
C. Zinc sulphate
D. Barium sulphate
5 The number of electron that are paired in oxygen molecule are
A. 16
B. 12
C. 14
D. 7
6 Sulphuric acid reacts with PCl5to give
A. Thionyl chloride
B. Sulphur monochloride
C. Sulphuryl chloride
D. Sulphur tetrachloride
7 Sodium should be stored in
A. Air free from moisture
B. Air free form carbon dioxide
C. Under water
D. Under kerosene oil
8 Identify the incorrect statement with respect to ozone
A. Ozone is formed in the upper atmosphere by a photochemical reaction involving dioxygen
B. Ozone is more reactive than diaoxygen
C. Ozone is diamagnetic whereas dioxygen is paramagnetic
D. Ozone protects the earth's inhabitants by absorbing gamma-radiations
9 The chemical formula of gypsum is
A. CaSO4. 5H2O
B. CaSO4. 4H2O
C. CaSO4. 2H2O
D. None of these
10 Phosphorus pentoxide finds use as
A. An oxidizing agent
B. A reducing agent
C. A bleaching agent
D. A dehydrating agent

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