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

Down's cell is used to prepare

Question # 2

The oxidation number of each element of group ll-A is

Question # 3

The metal with highest electrical resistance at room temperature is

Question # 4

Which of the following is a tetrabasic acid?

Question # 5

Heavy water is obtained by

Question # 6

The silver bromide in hypo (Na2S2O3) solution is

Question # 7

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 # 8

Marble is chemically

Question # 9

Which element has highest oxidation potential

Question # 10

Permonosulphuric acid is known as

Question # 11

Aluminium oxide is:

Question # 12

Lithium reacts with air to form

Question # 13

Phosphorus pentoxide finds use as

Question # 14

Which of all following compound is not possible

Question # 15

Phosphide ion has the electronic structure similar to that of

Question # 16

What is chrome yellow?

Question # 17

Which on of the following compounds does not exist?

Question # 18

Which is used to remove air bubbles form metals?

Question # 19

Crystalline form of sulphur stable at room temperature is

Question # 20

Which of the element is not an alkaline earth metal

Question # 21

NaHCO3is prepared by

Question # 22

When a colourless gas is passed through bromine water only decolourisation takes place the gas is

Question # 23

The alkaline earth elements have in their s-orbital

Question # 24

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

Question # 25

White phosphorus is

Question # 26

Which element form group 15 gives most basic compound with hydrogen?

Question # 27

The chemical formula of Trona is

Question # 28

What causes nitrogen to be chemically inert?

Question # 29

Which of the following compounds is explosive in nature?

Question # 30

White P when boiled with strong solution of caustic soda produces

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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 Electron affinity of sulphur is
A. More than O and Se
B. More than O but less than Se
C. Less than O but more than Se
D. Equal to O and Se
3 Sodium hexametaphophate is known as
A. Calgon
B. Permutite
C. Natalite
D. Nitrolim
4 The chemical formula of gypsum is
A. CaSO4. 5H2O
B. CaSO4. 4H2O
C. CaSO4. 2H2O
D. None of these
5 NaHCO3is commonly called
A. Soda ash
B. Baking soda
C. Washing soda
D. None of these
6 CaC2on hydrolysis form
A. CH4
B. C2H4
C. C2H2
D. C6H6
7 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
8 In a group IIA from top to bottom as the atomic number increases, there is regular decreases in
A. Ionic size
B. Atomic size
C. Ionization potential
D. None of these
9 The chemical formula of Trona is
A. KCl . MgCl2. 6H2O
B. Na2CO3. 2NaHCO3. 2H2O
C. Na2CO3. H2O
D. KCl
10 Which salt is used for preserving food
A. BaCl2
B. CaCl2
C. NaCl
D. Na2SO4

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