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

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Question # 1

Which of the following salt is soluble in water

Question # 2

Which of the following has highest dipole moment?

Question # 3

The chemical formula of gypsum is

Question # 4

Commercial common salt becomes slight damp on storing because

Question # 5

The acid which has a peroxy linkage is

Question # 6

Which property is not present in Al?

Question # 7

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

Question # 8

White P when boiled with strong solution of caustic soda produces

Question # 9

As a fixing agent in photography, sodium thisoulphate is used for

Question # 10

Hybridized in oxygen is:

Question # 11

The oxidation number of each element of group l-A is

Question # 12

Which of the following equations represents the action of heat on NaHCO3

Question # 13

The chemical formula of Epson salt is

Question # 14

Phosphide ion has the electronic structure similar to that of

Question # 15

Hypo is used in photography for

Question # 16

Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because

Question # 17

Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because

Question # 18

S-block elements consist of

Question # 19

Which of the following elements is not present abundantly in earth's crust?

Question # 20

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

Question # 21

Polyanion formation is maximum in

Question # 22

Baking powder has which one of the following formula

Question # 23

The oxidation number of each element of group ll-A is

Question # 24

What is the formula of asbestos?

Question # 25

Which salt is used for preserving food

Question # 26

The formula of lime stone is

Question # 27

Which of the following sulphates is not soluble in water

Question # 28

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

Question # 29

Lithium reacts with air to form

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The number of unpaired electrons in the p-subshell of oxygen atom
A. 1
B. 2
C. 3
D. 4
2 Solvay process is used in the manufacture of
A. Na2CO3
B. NaHCO3
C. CaCl2
D. All
3 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
4 Sodium forms largely
A. Normal oxides
B. Per-oxides
C. Superoxides
D. None of these
5 Which one of the following pentafluorides cannot be formed?
A. PF5
B. AsF5
C. SbF5
D. BiF5
6 Ozone is not
A. An allotrope
B. A powerful oxidizing agent
C. Paramagnetic
D. A bent molecule
7 ______ reacts with alkalis to give hydrogen
A. Be
B. Mg
C. Ca
D. None
8 S-block elements consist of
A. Alkali metals
B. Alkaline earth metals
C. Alkali and alkaline earth metals
D. None of these
9 Which electronic configuration corresponds to an element of Group ||Z-A of the periodic table?
A. 1s, 2s2, 2p6, 3s2, 3p6, 4s2
B. 1s2 , 2s2 , 2p6 , 3s2, 3p1
C. 1s2, 2s2, 2p6
D. 1s2, 2s2, 2p6, 3s2, 3p3
10 Permonosulphuric acid is known as
A. Marshall's acid
B. Carlo's acid
C. Sulphuric acid
D. None of these

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