ECAT Pre Engineering Chemistry Chapter 14 MCQ Test With Answer

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

Sulphuric acid has great affinity for water because

Question # 2

The oxide of beryllium is

Question # 3

Francium is an element at the bottom of Group I in the Periodic Table. Which one of the following predication is likely to be correct?

Question # 4

The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is

Question # 5

Which of the element is not alkali metal

Question # 6

Which element form group 15 gives most basic compound with hydrogen?

Question # 7

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

Question # 8

BiCl3on hydrolysis forms a white precipitate of

Question # 9

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

Question # 10

Which of the following has highest dipole moment?

Question # 11

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

Question # 12

Which of the following form normal oxide

Question # 13

Which carbonate of alkali metals is insoluble in water

Question # 14

S-block elements consist of

Question # 15

Which salt is used for preserving food

Question # 16

The alkaline earth elements have in their s-orbital

Question # 17

Borax is hydrated:

Question # 18

Which of the following oxides is peroxide?

Question # 19

What causes nitrogen to be chemically inert?

Question # 20

A compound used as eye wash:

Question # 21

Which of the following sulphates has the highest solubility in water

Question # 22

When SO2is passed through acidified K2Cr2O7solution

Question # 23

Baking powder has which one of the following formula

Question # 24

The most acidic of the following compounds is

Question # 25

Which of the following compounds is explosive in nature?

Question # 26

Corrundam is ore of:

Question # 27

Sulphuric acid reacts with PCl5to give

Question # 28

When ammonia is heated with cupric oxide, a molecule of ammonia will

Question # 29

Basicity of orthoposphoric acid is

Question # 30

LiOH ______ soluble than NaOH

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following is not the reactions of lithium
2 Dipole moment of CO molecule is:
A. 0.0
B. 1.112 D
C. 0.112 D
D. 2.112 D
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 The oxidation number of each element of group ll-A is
A. 0
B. +1
C. +2
D. -1
5 Which of the following is acidic?
A. SO3
B. N2O
C. BeO
D. HgO
6 Which one of the following properties is not correct for ozone?
A. It oxidizes lead sulphides
B. It oxidizes potassium iodide
C. It oxidizes mercury
D. It cannot act as a bleaching agent
7 Sodium forms largely
A. Normal oxides
B. Per-oxides
C. Superoxides
D. None of these
8 Heavy water is obtained by
A. Prolonged electrolysis of water
B. Dissolving heavy salt in water
C. Simple distillation of water
D. Removing impurities of calcium and magnesium form water
9 The acid used in lead storage cells is
A. Phosphoric acid
B. Nitric acid
C. Sulphuric acid
D. Hydrochloric acid
10 Basicity of orthoposphoric acid is
A. 2
B. 3
C. 4
D. 5

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