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

Hypo is used in photography for

Question # 2

Which of the following element is most reactive

Question # 3

Corrundam is ore of:

Question # 4

Which of the following salt is soluble in water

Question # 5

The alkali metals form

Question # 6

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

Question # 7

NaHCO3is prepared by

Question # 8

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

Question # 9

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

Question # 10

The alkaline earth elements have in their s-orbital

Question # 11

Gypsum is a common mineral of

Question # 12

Chief ore of aluminium is:

Question # 13

The acid which has a peroxy linkage is

Question # 14

Which is used to remove air bubbles form metals?

Question # 15

The ore CaSO42H2O has the general name

Question # 16

What is the formula of asbestos?

Question # 17

Phosphine is not obtained by the reaction when

Question # 18

BiCl3on hydrolysis forms a white precipitate of

Question # 19

______ reacts with alkalis to give hydrogen

Question # 20

CaC2on hydrolysis form

Question # 21

Which element has highest oxidation potential

Question # 22

Which of the following is the hardest metal among following

Question # 23

Which of the following phosphorus is most reactive?

Question # 24

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

Question # 25

Which of the following is a tetrabasic acid?

Question # 26

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

Question # 27

Which of the following sulphates is not soluble in water

Question # 28

Which of the following salt is used as purgative

Question # 29

______ is called milk of magnesia

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 S-block elements consist of
A. Alkali metals
B. Alkaline earth metals
C. Alkali and alkaline earth metals
D. None of these
2 Which of the following is the hardest metal among following
A. Li
B. Na
C. Rb
D. K
3 The element which has a simple cubic lattice in solid state is
A. Se
B. Te
C. Po
D. None of these
4 Francium is an element at the bottom of Group I in the Periodic Table. Which one of the following predication is likely to be correct?
A. It will react with water to liberate oxygen
B. Its hydroxide will be a strong alkali in water
C. Its carbonate will decompose on heating to give carbon dioxide
D. Its nitrate on heating will give nitrogen dioxide and oxygen
5 Which one of the following does not belong to alkaline earth metals
A. Be
B. Ra
C. Ba
D. Rn
6 Which of the following salt is soluble in water
A. CaCO3
B. CaSO4
C. MgSO4
D. BaSO4
7 Which of the following element is most reactive
A. Li
B. Na
C. K
D. Cs
8 Lime, calcium oxide, is used in agriculture for
A. Adding ca metal in soil
B. Making soil acidic
C. Neutralizing acidic soil
D. Adding oxygen to soil
9 Crystalline form of sulphur stable at room temperature is
A. Rhombic sulphur
B. Monoclinic sulphur
C. Plastic sulphur
D. Prismatic sulphur
10 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

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