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

00:00
Question # 1

Pb has inert pair of electrons:

Question # 2

Hybridized in oxygen is:

Question # 3

Boric acid cannot be used:

Question # 4

Ozone is not

Question # 5

Which one of the following pentafluorides cannot be formed?

Question # 6

White P when boiled with strong solution of caustic soda produces

Question # 7

The chemical formula of Epson salt is

Question # 8

The oxide of beryllium is

Question # 9

The metal with highest electrical resistance at room temperature is

Question # 10

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

Question # 11

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

Question # 12

The acid which has a peroxy linkage is

Question # 13

The structure of white phosphorus is

Question # 14

Tincal is a mineral of:

Question # 15

Baking powder has which one of the following formula

Question # 16

Basicity of orthoposphoric acid is

Question # 17

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

Question # 18

Which carbonate of alkali metals is insoluble in water

Question # 19

______ is called milk of magnesia

Question # 20

The number of electron that are paired in oxygen molecule are

Question # 21

Electron affinity of sulphur is

Question # 22

The alkaline earth elements have in their s-orbital

Question # 23

Crystalline form of sulphur stable at room temperature is

Question # 24

Which is used in navigational equipments?

Question # 25

Which of the element is not an alkaline earth metal

Question # 26

Gypsum is applied to the soil to provide calcium and

Question # 27

A compound used as eye wash:

Question # 28

Which of the following elements is most metallic?

Question # 29

Orthophosphoric acid is

Question # 30

Identify the incorrect statement with respect to ozone

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The oxidation number of each element of group ll-A is
A. 0
B. +1
C. +2
D. -1
2 The formula of lime stone is
A. CaCl2
B. MgCO3
C. Na2CO3
D. CaCO3
3 The silver bromide in hypo (Na2S2O3) solution is
A. Soluble
B. Not soluble
C. Precipitated
D. Not effect
4 Density of aluminium is (g cm-3):
A. B
B. Al
C. Si
D. Ge
5 Which of the following sulphates is not soluble in water
A. Sodium sulphate
B. Potassium sulphate
C. Zinc sulphate
D. Barium sulphate
6 Copper oxide is dedected by borax bead test with colour:
A. Blue
B. Red
C. Yellow
D. Black
7 Sodium forms largely
A. Normal oxides
B. Per-oxides
C. Superoxides
D. None of these
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 statement is not related to Solvay's process of Na2CO3
A. Cheap materials
B. Pure product
C. Continuous process
D. Harmful by-products
10 Alkaline earth metals are usually
A. Reducing agent
B. Oxidizing agent
C. Amphoteric
D. Acidic

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