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

Sodium hexametaphophate is known as

Question # 2

Alkaline earth metals posses two electrons in their outermost

Question # 3

Solvay process is used in the manufacture of

Question # 4

Which is an essential constituent of chlorophyll

Question # 5

Silicon atom is hybridized:

Question # 6

Dipole moment of CO molecule is:

Question # 7

Alkali metals react violently with halogens to form

Question # 8

When a colourless gas is passed through bromine water only decolourisation takes place the gas is

Question # 9

Which of the following compound is industrially prepared by the electrolysis of solution of NaCl

Question # 10

Phosphide ion has the electronic structure similar to that of

Question # 11

Which element forms an iron with charge 3+?

Question # 12

Chemical composition of colemnite is:

Question # 13

Which element has highest oxidation potential

Question # 14

Density of aluminium is (g cm-3):

Question # 15

The chemical formula of chile salt peter is

Question # 16

LiOH ______ soluble than NaOH

Question # 17

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

Question # 18

Which of the following is the hardest metal among following

Question # 19

Which one of the following is not an alkali metal

Question # 20

Which of the following oxides is peroxide?

Question # 21

Sodium is never found free in nature because of its

Question # 22

All the following decompose easily on heating to give oxygen except

Question # 23

The maximum number of electrons in the outermost shall of s-black elements is

Question # 24

Which of the following is acidic?

Question # 25

The ore CaSO42H2O has the general name

Question # 26

Which is used in navigational equipments?

Question # 27

Which of the following is not the reactions of lithium

Question # 28

Each of the following is true of white and red phosphours except that they

Question # 29

Polyanion formation is maximum in

Question # 30

White phosphorus is

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Ozone is not
A. An allotrope
B. A powerful oxidizing agent
C. Paramagnetic
D. A bent molecule
2 The chemical formula of magnesite is
A. MgCl2
B. Mg(HCO3)2
C. MgCO3
D. None of these
3 Alkaline earth metals posses two electrons in their outermost
A. F-orbital
B. D-orbital
C. S-orbital
D. P-orbital
4 Which of the following element is most reactive
A. Li
B. Na
C. K
D. Cs
5 Bond angle is minimum for
A. H2O
B. H2S
C. H2Se
D. H2Te
6 White phosphorus is
A. A mono atomic gas
B. P4, a tetrahedral solid
C. P8, a crown
D. A linear diatomic molecule
7 Calcium carbide reacts with water to produce
A. Acetylene
B. Methane
C. Ethylene
D. Ethane
8 Which of the element is not alkali metal
A. Lithium
B. Rubidium
C. Francium
D. Magnesium
9 Dipole moment of CO molecule is:
A. 0.0
B. 1.112 D
C. 0.112 D
D. 2.112 D
10 Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?
A. Nitric oxide
B. Nitrous oxide
C. Nitrogen dioxide
D. Dinitrogen tetraoxide

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