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

Gypsum is a common mineral of

Question # 2

Which is used to remove air bubbles form metals?

Question # 3

Which of the following elements is most metallic?

Question # 4

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

Question # 5

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 # 6

Carbonates of alkali metals dissolves freely in water to form

Question # 7

______ gives peroxide

Question # 8

Identify the incorrect statement with respect to ozone

Question # 9

Which of the following salt is used as purgative

Question # 10

Calcium carbide reacts with water to produce

Question # 11

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

Question # 12

Which carbonate of alkali metals is insoluble in water

Question # 13

Tincal is a mineral of:

Question # 14

Alkaline earth metals are usually

Question # 15

Which of the following fluorides does not exists?

Question # 16

Commercial common salt becomes slight damp on storing because

Question # 17

Which one of the following pentafluorides cannot be formed?

Question # 18

HNO2acts as an/a

Question # 19

Lithium reacts with air to form

Question # 20

______ is used in breathing equipments for mountaineers and in space craft

Question # 21

Which of the following sulphates is not soluble in water

Question # 22

The chemical formula of magnesite is

Question # 23

Alkaline earth metals posses two electrons in their outermost

Question # 24

Heavy water is obtained by

Question # 25

The electrolytic cell used for the production of metallic sodium is known as

Question # 26

Which element forms an iron with charge 3+?

Question # 27

Which of the following compounds is explosive in nature?

Question # 28

The chemical formula of chile salt peter is

Question # 29

The ore CaSO42H2O has the general name

Question # 30

Which of the following element is most reactive

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 When SO2is passed through acidified K2Cr2O7solution
A. The solution turns blue
B. The solution is decolourised
C. SO2is reduced
D. Green Cr2(SO4)3is formed
2 Silicon atom is hybridized:
A. sp
B. sp2
C. sp3
D. dsp2
3 Which has soapy touch?
A. Na2B4O7
B. H3BO3
C. Ca2B6O11
D. HBO2
4 Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly
5 The silver bromide in hypo (Na2S2O3) solution is
A. Soluble
B. Not soluble
C. Precipitated
D. Not effect
6 Which of the following equations represents the action of heat on NaHCO3
7 Alkali metals react violently with halogens to form
A. Hydrides
B. Halides
C. Anyhydrides
D. None of these
8 ______ is used in breathing equipments for mountaineers and in space craft
A. Li2O
B. BeO
C. N2
D. KO2
9 NaHCO3is commonly called
A. Soda ash
B. Baking soda
C. Washing soda
D. None of these
10 The most acidic of the following compounds is
A. P2O3
B. Sb2O3
C. B2O3
D. As2O3

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