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

Phosphorus pentoxide finds use as

Question # 2

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

Question # 3

______ gives peroxide

Question # 4

Which of the following are electropositive in nature

Question # 5

______ is used in breathing equipments for mountaineers and in space craft

Question # 6

Oleum is

Question # 7

Alkaline earth metals posses two electrons in their outermost

Question # 8

Chief ore of aluminium is:

Question # 9

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

Question # 10

Phosphine is not obtained by the reaction when

Question # 11

Permonosulphuric acid is known as

Question # 12

Which element among the following belongs to Group IV-A of the periodic table?

Question # 13

Hypo is used in photography for

Question # 14

Which element has highest oxidation potential

Question # 15

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

Question # 16

Bond angle is minimum for

Question # 17

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

Question # 18

Orthophosphoric acid is

Question # 19

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

Question # 20

Which of the following compounds is explosive in nature?

Question # 21

Crystalline form of sulphur stable at room temperature is

Question # 22

Which of the element is not an alkaline earth metal

Question # 23

The maximum number of electrons in the outermost shall of s-black elements is

Question # 24

Red P can be obtained form white P by

Question # 25

What causes nitrogen to be chemically inert?

Question # 26

Boric acid cannot be used:

Question # 27

NaHCO3is commonly called

Question # 28

Alkali metals react violently with halogens to form

Question # 29

CaC2on hydrolysis form

Question # 30

BiCl3on hydrolysis forms a white precipitate of

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following sulphates is not soluble in water
A. Sodium sulphate
B. Potassium sulphate
C. Zinc sulphate
D. Barium sulphate
2 Which electronic configuration corresponds to an element of Group ||Z-A of the periodic table?
A. 1s, 2s2, 2p6, 3s2, 3p6, 4s2
B. 1s2 , 2s2 , 2p6 , 3s2, 3p1
C. 1s2, 2s2, 2p6
D. 1s2, 2s2, 2p6, 3s2, 3p3
3 CaC2on hydrolysis form
A. CH4
B. C2H4
C. C2H2
D. C6H6
4 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
5 White P when boiled with strong solution of caustic soda produces
A. Phosphine
B. Posh acid
C. Phosphorous acid
D. None
6 ______ gives peroxide
A. Li
B. Ba
C. Sr
D. Be
7 Chile saltpetre has the chemical formula
A. NaNO3
B. KNO3
C. Na2B4O7
D. Na2CO3H2O
8 Which salt is used for the treatment of hyperacidity in stomach
A. NaCl
B. KCl
C. NaHCO3
D. Na2CO3
9 Which of the following is lighter
A. Li
B. k
C. Na
D. Ca
10 Which property is not present in Al?
A. Reacts with acid
B. Reacts with bases
C. Changes litmus paper
D. Changes methyle orange colour

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