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

All the following decompose easily on heating to give oxygen except

Question # 2

Which salt is used for preserving food

Question # 3

The chemical formula of Epson salt is

Question # 4

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

Question # 5

The silver bromide in hypo (Na2S2O3) solution is

Question # 6

Which of the following salt is soluble in water

Question # 7

Which of the following phosphorus is most reactive?

Question # 8

S-block elements consist of

Question # 9

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 10

Basicity of orthoposphoric acid is

Question # 11

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?

Question # 12

The ore CaSO42H2O has the general name

Question # 13

Which is used to remove air bubbles form metals?

Question # 14

Corrundam is ore of:

Question # 15

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

Question # 16

Which of the following sulphates has the highest solubility in water

Question # 17

Which of the following compound is industrially prepared by the electrolysis of solution of NaCl

Question # 18

Gypsum is a common mineral of

Question # 19

What is the formula of asbestos?

Question # 20

Phosphide ion has the electronic structure similar to that of

Question # 21

When SO2is passed through acidified K2Cr2O7solution

Question # 22

Which is an essential constituent of chlorophyll

Question # 23

NaHCO3is prepared by

Question # 24

Which one of the following pentafluorides cannot be formed?

Question # 25

Dipole moment of CO molecule is:

Question # 26

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

Question # 27

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

Question # 28

Permonosulphuric acid is known as

Question # 29

Chemical composition of colemnite is:

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The element caesium bears resemblance with
A. Ca
B. Cr
C. Rubidium
D. None of the above
2 Which of the following elements is not present abundantly in earth's crust?
A. Silicon
B. Aluminium
C. Sodium
D. Oxygen
3 Dipole moment of CO molecule is:
A. 0.0
B. 1.112 D
C. 0.112 D
D. 2.112 D
4 Which of the following is acidic?
A. SO3
B. N2O
C. BeO
D. HgO
5 Silicon atom is hybridized:
A. sp
B. sp2
C. sp3
D. dsp2
6 Borax is a common mineral of alkali metal sodium. Its formula is
A. Na2B4O7
B. Na2,B4O7. 10H2O
C. Na2B3O6. 10H2O
D. Na2B4O7- 5H2O
7 Which of the following is the hardest metal among following
A. Li
B. Na
C. Rb
D. K
8 The structure of white phosphorus is
A. Square planar
B. Pyramidal
C. Tetrahedral
D. Trigonal planer
9 Down's cell is used to prepare
A. Sodium carbonate
B. Sodium bicarbonate
C. Sodium metal
D. Sodium hydroxide
10 On alkali and alkaline earth metals down the group, there is decreasing trend in
A. m.p.
B. b.p.
C. Ionization potentiall
D. All of these

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