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

Sodium hexametaphophate is known as

Question # 2

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

Question # 3

Commercial common salt becomes slight damp on storing because

Question # 4

Sodium is never found free in nature because of its

Question # 5

Pb has inert pair of electrons:

Question # 6

Bond angle is minimum for

Question # 7

Alkaline earth metals posses two electrons in their outermost

Question # 8

Which property is not present in Al?

Question # 9

The number of electron that are paired in oxygen molecule are

Question # 10

White phosphorus is

Question # 11

Phosphide ion has the electronic structure similar to that of

Question # 12

Which of all following compound is not possible

Question # 13

Chile saltpetre has the chemical formula

Question # 14

The chemical formula of gypsum is

Question # 15

The formula of lime stone is

Question # 16

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

Question # 17

Some of the elements of a period show similar behavior with the elements of next group in next period this is called

Question # 18

Borax is a common mineral of alkali metal sodium. Its formula is

Question # 19

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

Question # 20

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

Question # 21

Red P can be obtained form white P by

Question # 22

The acid which has a peroxy linkage is

Question # 23

Corrundam is ore of:

Question # 24

Which one of the following elements occurs free in nature?

Question # 25

Which element has highest oxidation potential

Question # 26

Carbonates of alkali metals dissolves freely in water to form

Question # 27

The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is

Question # 28

Which of the following salt is soluble in water

Question # 29

Which is an essential constituent of chlorophyll

Question # 30

Which of the following is formed by the action of water on sodium peroxide?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The chemical formula of chile salt peter is
A. Na2CO3
B. KNO3
C. NaNO3
D. NaNO2
2 ______ reacts with alkalis to give hydrogen
A. Be
B. Mg
C. Ca
D. None
3 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
4 Baking powder has which one of the following formula
A. Na2CO3
B. Na2SO4
C. NaHCO3
D. K2CO3
5 Aluminium oxide is:
A. Acidic oxide
B. Basic oxide
C. Amphoteric oxided
D. None of these
6 Which of the following form normal oxide
A. K
B. Li
C. Na
D. None
7 Chile saltpetre has the chemical formula
A. NaNO3
B. KNO3
C. Na2B4O7
D. Na2CO3H2O
8 Borax is a common mineral of alkali metal sodium. Its formula is
A. Na2B4O7
B. Na2,B4O7. 10H2O
C. Na2B3O6. 10H2O
D. Na2B4O7- 5H2O
9 Which of the following oxides is peroxide?
A. Na2O2
B. MnO2
C. BaO
D. SO2
10 Crystalline form of sulphur stable at room temperature is
A. Rhombic sulphur
B. Monoclinic sulphur
C. Plastic sulphur
D. Prismatic sulphur

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