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

Question # 2

Copper oxide is dedected by borax bead test with colour:

Question # 3

In the earth crust sodium is

Question # 4

Down's cell is used to prepare

Question # 5

On alkali and alkaline earth metals down the group, there is decreasing trend in

Question # 6

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

Question # 7

Which carbonate of alkali metals is insoluble in water

Question # 8

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

Question # 9

Sodium forms largely

Question # 10

Which of the following oxides is peroxide?

Question # 11

Phosphide ion has the electronic structure similar to that of

Question # 12

The element caesium bears resemblance with

Question # 13

Which is used to remove air bubbles form metals?

Question # 14

Which is not the form of silica?

Question # 15

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

Question # 16

Which of the following form normal oxide

Question # 17

Which of the element is not alkali metal

Question # 18

Sodium hexametaphophate is known as

Question # 19

Which of the following has highest dipole moment?

Question # 20

Alkali metals react violently with halogens to form

Question # 21

Dipole moment of CO molecule is:

Question # 22

Which colour is imparted by sodium

Question # 23

The metal with highest electrical resistance at room temperature is

Question # 24

S-block elements consist of

Question # 25

Which of the following elements is most metallic?

Question # 26

Which of the following is a tetrabasic acid?

Question # 27

Which one of the following elements occurs free in nature?

Question # 28

The ore CaSO42H2O has the general name

Question # 29

Which of the following is not the reactions of lithium

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 Sodium is never found free in nature because of its
A. Chemical reactivity
B. Small ionic size
C. Small atomic volume
D. None of these
2 NaHCO3is commonly called
A. Soda ash
B. Baking soda
C. Washing soda
D. None of these
3 Which of all following compound is not possible
4 The chemical formula of chile salt peter is
A. Na2CO3
B. KNO3
C. NaNO3
D. NaNO2
5 Polyanion formation is maximum in
A. Nitrogen
B. Oxygen
C. Sulphur
D. Boron
6 Which of the following has highest dipole moment?
A. NH3
B. PH3
C. AsH3
D. SbH3
7 Group VA of the periodic table consists of the elements N, P, As, Sb and Bi, On passing from N to Bi, the oxides of the elements of general formula M2O3become
A. Stronger reducing agents
B. More ionic
C. More basic
D. More volatile
8 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
9 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
10 The oxidation number of each element of group l-A is
A. 0
B. +1
C. +2
D. -1

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