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 one of the following is not an alkali metal

Question # 2

S-block elements consist of

Question # 3

All the elements of oxygen family are

Question # 4

Sodium hexametaphophate is known as

Question # 5

Commercial common salt becomes slight damp on storing because

Question # 6

Aluminium oxide is:

Question # 7

Sodium forms largely

Question # 8

Which one of the following does not belong to alkaline earth metals

Question # 9

Which one of the following elements occurs free in nature?

Question # 10

What causes nitrogen to be chemically inert?

Question # 11

When SO2is passed through acidified K2Cr2O7solution

Question # 12

Hypo is used in photography for

Question # 13

Each of the following is true of white and red phosphours except that they

Question # 14

Which of the following element is most reactive

Question # 15

The chemical formula of magnesite is

Question # 16

Which is litharge or massicot?

Question # 17

The chemical formula of chile salt peter is

Question # 18

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

Question # 19

The number of electron that are paired in oxygen molecule are

Question # 20

The chemical formula of Epson salt is

Question # 21

Ozone is not

Question # 22

Gypsum is a common mineral of

Question # 23

The oxidation number of each element of group ll-A is

Question # 24

What is the formula of asbestos?

Question # 25

Which of the following salt is soluble in water

Question # 26

Which colour is imparted by sodium

Question # 27

White P when boiled with strong solution of caustic soda produces

Question # 28

Gypsum is applied to the soil to provide calcium and

Question # 29

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

Question # 30

The chemical formula of gypsum is

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 Which of the following elements is most metallic?
A. P
B. As
C. Sb
D. Bi
3 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
4 ______ gives peroxide
A. Li
B. Ba
C. Sr
D. Be
5 The metal with highest electrical resistance at room temperature is
A. Pb
B. Te
C. Po
D. Fe
6 Which of the following phosphorus is most reactive?
A. Red phosphorus
B. White phosphorus
C. Scrlet phosphorus
D. Violet phosphorous
7 A compound used as eye wash:
A. Borax
B. Boric acid
C. Metabolic acid
D. Pyroboric acid
8 Which of the following equations represents the action of heat on NaHCO3
9 Which one of the following does not belong to alkaline earth metals
A. Be
B. Ra
C. Ba
D. Rn
10 Alkaline earth metals posses two electrons in their outermost
A. F-orbital
B. D-orbital
C. S-orbital
D. P-orbital

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