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

Which carbonate of alkali metals is insoluble in water

Question # 2

Which of the following equations represents the action of heat on NaHCO3

Question # 3

Which salt is used for the treatment of hyperacidity in stomach

Question # 4

HNO2acts as an/a

Question # 5

The chemical formula of gypsum is

Question # 6

The number of unpaired electrons in the p-subshell of oxygen atom

Question # 7

The oxide of beryllium is

Question # 8

Oleum is

Question # 9

Sodium hexametaphophate is known as

Question # 10

Permonosulphuric acid is known as

Question # 11

Which of the following phosphorus is most reactive?

Question # 12

Gypsum is a common mineral of

Question # 13

Which of the following sulphates has the highest solubility in water

Question # 14

Down's cell is used to prepare

Question # 15

The acid which has a peroxy linkage is

Question # 16

NaHCO3is commonly called

Question # 17

Which is used to remove air bubbles form metals?

Question # 18

Which on of the following compounds does not exist?

Question # 19

Borax is hydrated:

Question # 20

Which one of the following properties is not correct for ozone?

Question # 21

Sulphuric acid reacts with PCl5to give

Question # 22

The alkali metals form

Question # 23

______ is called milk of magnesia

Question # 24

Chief ore of aluminium is:

Question # 25

In the earth crust sodium is

Question # 26

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

Question # 27

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

Question # 28

Red P can be obtained form white P by

Question # 29

Group VA of the periodic table consists of the elements N, P, As, Sb and Bi, On passing from N to Bi, the oxides of the elements of general formula M2O3become

Question # 30

Phosphine is not obtained by the reaction when

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The chemical formula of Epson salt is
A. MgSO4
B. MgCl2
C. MgSO4. 7H2O
D. MgCl2. 7H2O
2 Which element forms an iron with charge 3+?
A. Berylium
B. Aluminium
C. Carbon
D. Silicon
3 Sodium forms largely
A. Normal oxides
B. Per-oxides
C. Superoxides
D. None of these
4 Sodium hexametaphophate is known as
A. Calgon
B. Permutite
C. Natalite
D. Nitrolim
5 As a fixing agent in photography, sodium thisoulphate is used for
A. Dissolving out unreacted silver bromide
B. Converting silver
C. Reducing solubility of AgBr
D. Preventing overdeveloping and fogging
6 All the elements of oxygen family are
A. Non metals
B. Metalloids
C. Radioactive
D. Polymorphic
7 Aluminium oxide is:
A. Acidic oxide
B. Basic oxide
C. Amphoteric oxided
D. None of these
8 Which of the following sulphates has the highest solubility in water
A. BaSO4
B. CaSO4
C. MgSO4
D. BeSO4
9 Which is not the form of silica?
A. Amethyst quatz
B. Rose quatz
C. Smoky
D. None of these
10 Alkaline earth metals posses two electrons in their outermost
A. F-orbital
B. D-orbital
C. S-orbital
D. P-orbital

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