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 is litharge or massicot?

Question # 2

Sodium should be stored in

Question # 3

All the following decompose easily on heating to give oxygen except

Question # 4

Which one of the following elements occurs free in nature?

Question # 5

Plaster of pares is obtained by heating

Question # 6

Silicon atom is hybridized:

Question # 7

Which of the following phosphorus is most reactive?

Question # 8

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

Question # 9

Which of the following salt is soluble in water

Question # 10

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

Question # 11

Which one of the following is not an alkali metal

Question # 12

The alkaline earth elements have in their s-orbital

Question # 13

Phosphide ion has the electronic structure similar to that of

Question # 14

Which of the following form normal oxide

Question # 15

Baking powder has which one of the following formula

Question # 16

The element caesium bears resemblance with

Question # 17

In the earth crust sodium is

Question # 18

The chemical formula of chile salt peter is

Question # 19

Which metal is used in the thermit process because of its activity?

Question # 20

Which has soapy touch?

Question # 21

What is chrome yellow?

Question # 22

Which will have the maximum value of heat of hydration

Question # 23

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

Question # 24

LiOH ______ soluble than NaOH

Question # 25

Red P can be obtained form white P by

Question # 26

Electron affinity of sulphur is

Question # 27

Chile saltpetre has the chemical formula

Question # 28

The structure of white phosphorus is

Question # 29

Alkaline earth metals posses two electrons in their outermost

Question # 30

The most acidic of the following compounds is

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 S-block elements consist of
A. Alkali metals
B. Alkaline earth metals
C. Alkali and alkaline earth metals
D. None of these
2 Which of the following are electropositive in nature
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Alkali and alkaline earth metals
3 Oleum is
A. Castor oil
B. Oil of vitriol
C. Fuming of H2SO4
D. None of them
4 Chile saltpetre has the chemical formula
A. NaNO3
B. KNO3
C. Na2B4O7
D. Na2CO3H2O
5 On alkali and alkaline earth metals down the group, there is decreasing trend in
A. m.p.
B. b.p.
C. Ionization potentiall
D. All of these
6 Ozone is not
A. An allotrope
B. A powerful oxidizing agent
C. Paramagnetic
D. A bent molecule
7 Which one of the following is not an alkali metal
A. Francium
B. Caesium
C. Rubidium
D. Radium
8 Down's cell is used to prepare
A. Sodium carbonate
B. Sodium bicarbonate
C. Sodium metal
D. Sodium hydroxide
9 NaHCO3is commonly called
A. Soda ash
B. Baking soda
C. Washing soda
D. None of these
10 The oxidation number of each element of group l-A is
A. 0
B. +1
C. +2
D. -1

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