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

In a group IIA from top to bottom as the atomic number increases, there is regular decreases in

Question # 2

Which of the following elements is most metallic?

Question # 3

______ gives peroxide

Question # 4

The metal with highest electrical resistance at room temperature is

Question # 5

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

Question # 6

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

Question # 7

Which colour is imparted by sodium

Question # 8

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

Question # 9

Tincal is a mineral of:

Question # 10

The chemical formula of chile salt peter is

Question # 11

Dipole moment of CO molecule is:

Question # 12

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

Question # 13

The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is

Question # 14

Which of the following elements is not present abundantly in earth's crust?

Question # 15

Which is used in navigational equipments?

Question # 16

Which of the following phosphorus is most reactive?

Question # 17

The chemical formula of Epson salt is

Question # 18

Bond angle is minimum for

Question # 19

Calcium carbide reacts with water to produce

Question # 20

Sodium should be stored in

Question # 21

Which has soapy touch?

Question # 22

Density of aluminium is (g cm-3):

Question # 23

Which one of the following is not an alkali metal

Question # 24

Which of the following has highest dipole moment?

Question # 25

All the following decompose easily on heating to give oxygen except

Question # 26

What is going to replace the petroleum?

Question # 27

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

Question # 28

Commercial common salt becomes slight damp on storing because

Question # 29

The silver bromide in hypo (Na2S2O3) solution is

Question # 30

Hypo is used in photography for

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The formula of lime stone is
A. CaCl2
B. MgCO3
C. Na2CO3
D. CaCO3
2 Which of the element is not alkali metal
A. Lithium
B. Rubidium
C. Francium
D. Magnesium
3 Chief ore of aluminium is:
A. Na3AIF6
B. Al2O3.2H2O
C. Al2O3
D. Al2O3 .H2O
4 Which one of the following is not an alkali metal
A. Francium
B. Caesium
C. Rubidium
D. Radium
5 What causes nitrogen to be chemically inert?
A. Multiple bond formation in the molecule
B. Absence of bond distance
C. Short internuclear distance
D. High bond energy
6 What is the formula of asbestos?
A. CaMg3(SiO3)4
B. CaSiO3
C. Na2SiO3
D. Mg3H2(SiO3)4
7 Plaster of pares is obtained by heating
A. Gypsum
B. Epsom
C. Lime stone
D. Dolomite
8 Phosphine is not obtained by the reaction when
A. White P is heated with NaOH
B. Red P is heated with NaOH
C. Ca2P2reacts with water
D. PH4l is boiled with water
9 Ozone is not
A. An allotrope
B. A powerful oxidizing agent
C. Paramagnetic
D. A bent molecule
10 The metal with highest electrical resistance at room temperature is
A. Pb
B. Te
C. Po
D. Fe

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