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

When SO2is passed through acidified K2Cr2O7solution

Question # 2

Which of the following are electropositive in nature

Question # 3

The metal with highest electrical resistance at room temperature is

Question # 4

Density of aluminium is (g cm-3):

Question # 5

The chemical formula of Trona is

Question # 6

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

Question # 7

Which of the following statement is not related to Solvay's process of Na2CO3

Question # 8

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

Question # 9

Which element has highest oxidation potential

Question # 10

S-block elements consist of

Question # 11

The alkaline earth elements have in their s-orbital

Question # 12

HNO2acts as an/a

Question # 13

Chile saltpetre has the chemical formula

Question # 14

BiCl3on hydrolysis forms a white precipitate of

Question # 15

Orthophosphoric acid is

Question # 16

Sulphuric acid reacts with PCl5to give

Question # 17

The element which has a simple cubic lattice in solid state is

Question # 18

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 # 19

Carbonates of alkali metals dissolves freely in water to form

Question # 20

Silicon atom is hybridized:

Question # 21

Which is used in navigational equipments?

Question # 22

Calcium carbide reacts with water to produce

Question # 23

Plaster of pares is obtained by heating

Question # 24

Heavy water is obtained by

Question # 25

Red P can be obtained form white P by

Question # 26

Crystalline form of sulphur stable at room temperature is

Question # 27

Which on of the following compounds does not exist?

Question # 28

All the following decompose easily on heating to give oxygen except

Question # 29

Which of the following oxides is peroxide?

Question # 30

The ore CaSO42H2O has the general name

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 In the earth crust sodium is
A. 2.50%
B. 2.30%
C. 2.40%
D. 3.50%
2 The oxidation number of each element of group l-A is
A. 0
B. +1
C. +2
D. -1
3 What is chrome yellow?
A. Pbo
B. Pb2O
C. PbCrO4
D. Pb3O4
4 The structure of white phosphorus is
A. Square planar
B. Pyramidal
C. Tetrahedral
D. Trigonal planer
5 Hypo is used in photography for
A. Developing picture
B. Picture printed
C. The colour of picture
D. The fixation of picture
6 The chemical formula of gypsum is
A. CaSO4. 5H2O
B. CaSO4. 4H2O
C. CaSO4. 2H2O
D. None of these
7 Marble is chemically
A. CaCl2
B. CaCO3
C. Na2CO3
D. NaHCO3
8 The silver bromide in hypo (Na2S2O3) solution is
A. Soluble
B. Not soluble
C. Precipitated
D. Not effect
9 Which of the following are electropositive in nature
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Alkali and alkaline earth metals
10 The formula of lime stone is
A. CaCl2
B. MgCO3
C. Na2CO3
D. CaCO3

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