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

Pb has inert pair of electrons:

Question # 2

Chile saltpetre has the chemical formula

Question # 3

Heavy water is obtained by

Question # 4

Polyanion formation is maximum in

Question # 5

Which of the following form normal oxide

Question # 6

Orthophosphoric acid is

Question # 7

The chemical formula of Trona is

Question # 8

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

Question # 9

Which of the following salt is soluble in water

Question # 10

Hybridized in oxygen is:

Question # 11

Chief ore of aluminium is:

Question # 12

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 13

Which of the following elements is most metallic?

Question # 14

Which salt is used for preserving food

Question # 15

The element caesium bears resemblance with

Question # 16

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

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

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

Question # 21

Which of the following is acidic?

Question # 22

S-block elements consist of

Question # 23

Crystalline form of sulphur stable at room temperature is

Question # 24

HNO2acts as an/a

Question # 25

Sulphuric acid reacts with PCl5to give

Question # 26

Which property is not present in Al?

Question # 27

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

Question # 28

Lithium reacts with air to form

Question # 29

A compound used as eye wash:

Question # 30

Corrundam is ore of:

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Down's cell is used to prepare
A. Sodium carbonate
B. Sodium bicarbonate
C. Sodium metal
D. Sodium hydroxide
2 As a fixing agent in photography, sodium thisoulphate is used for
A. Dissolving out unreacted silver bromide
B. Converting silver
C. Reducing solubility of AgBr
D. Preventing overdeveloping and fogging
3 Hypo is used in photography for
A. Developing picture
B. Picture printed
C. The colour of picture
D. The fixation of picture
4 Which of the following phosphorus is most reactive?
A. Red phosphorus
B. White phosphorus
C. Scrlet phosphorus
D. Violet phosphorous
5 Which carbonate of alkali metals is insoluble in water
A. Na2CO3
B. K2CO3
C. Li2CO3
D. Cs2CO3
6 ______ gives peroxide
A. Li
B. Ba
C. Sr
D. Be
7 Commercial common salt becomes slight damp on storing because
A. Common salt is hygroscope
B. Common salt contains some impurity, which is hygroscopic
C. Salt in efflorescent
D. Salt is crystalline
8 Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because
A. Sodium chloride does not ionize in the water solution
B. Sodium chloride is not soluble in water
C. Sodium deposited at the cathode may react with water to form sodium hydroxide
D. Electricity does not pass through aqueous NaCl
9 Which one of the following does not belong to alkaline earth metals
A. Be
B. Ra
C. Ba
D. Rn
10 What causes nitrogen to be chemically inert?
A. Multiple bond formation in the molecule
B. Absence of bond distance
C. Short internuclear distance
D. High bond energy

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