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

The structure of white phosphorus is

Question # 2

Alkali metals react violently with halogens to form

Question # 3

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

Question # 4

Which of the following is the hardest metal among following

Question # 5

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

Question # 6

Polyanion formation is maximum in

Question # 7

Which electronic configuration corresponds to an element of Group ||Z-A of the periodic table?

Question # 8

Sodium is never found free in nature because of its

Question # 9

Which of the following elements is not present abundantly in earth's crust?

Question # 10

Which is litharge or massicot?

Question # 11

Red P can be obtained form white P by

Question # 12

Identify the incorrect statement with respect to ozone

Question # 13

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

Question # 14

The element which has a simple cubic lattice in solid state is

Question # 15

CaC2on hydrolysis form

Question # 16

Carbonates of alkali metals dissolves freely in water to form

Question # 17

All the elements of oxygen family are

Question # 18

Which salt is used for preserving food

Question # 19

Tincal is a mineral of:

Question # 20

The number of electron that are paired in oxygen molecule are

Question # 21

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

Question # 22

Which is used to remove air bubbles form metals?

Question # 23

Ozone is not

Question # 24

What causes nitrogen to be chemically inert?

Question # 25

Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is

Question # 26

Oleum is

Question # 27

Orthophosphoric acid is

Question # 28

Borax is hydrated:

Question # 29

Which of the following phosphorus is most reactive?

Question # 30

The number of unpaired electrons in the p-subshell of oxygen atom

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which on of the following compounds does not exist?
A. NCl5
B. AsF5
C. SbCl5
D. PF5
2 The silver bromide in hypo (Na2S2O3) solution is
A. Soluble
B. Not soluble
C. Precipitated
D. Not effect
3 Silicon atom is hybridized:
A. sp
B. sp2
C. sp3
D. dsp2
4 Which of the following is a tetrabasic acid?
A. ORthophosphoric acid
B. Hyposphosphorus acid
C. Metaphosphoric
D. Pyrophosphoric acid
5 ______ gives peroxide
A. Li
B. Ba
C. Sr
D. Be
6 Which shows maximum catenation property?
A. S
B. Se
C. Te
D. O
7 The alkaline earth elements have in their s-orbital
A. One electron
B. Two electron
C. No electron
D. Three electron
8 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
9 When sulphur is boiled with Na2SO3solution, the compound formed is
A. Sodium sulphides
B. Sodiums sulphates
C. Sodium persulphate
D. Sodium thiosulphate
10 Which of the following sulphates is not soluble in water
A. Sodium sulphate
B. Potassium sulphate
C. Zinc sulphate
D. Barium sulphate

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