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

Electron affinity of sulphur is

Question # 2

Which is used in navigational equipments?

Question # 3

The chemical formula of magnesite is

Question # 4

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

Question # 5

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

Question # 6

All the elements of oxygen family are

Question # 7

The electrolytic cell used for the production of metallic sodium is known as

Question # 8

The element caesium bears resemblance with

Question # 9

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

Question # 10

The metal with highest electrical resistance at room temperature is

Question # 11

What is going to replace the petroleum?

Question # 12

Which of the following compounds is explosive in nature?

Question # 13

Identify the incorrect statement with respect to ozone

Question # 14

Which is litharge or massicot?

Question # 15

Plaster of pares is obtained by heating

Question # 16

Phosphine is not obtained by the reaction when

Question # 17

Down's cell is used to prepare

Question # 18

Which of the following are electropositive in nature

Question # 19

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

Question # 20

______ is used in breathing equipments for mountaineers and in space craft

Question # 21

The maximum number of electrons in the outermost shall of s-black elements is

Question # 22

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

Question # 23

LiOH ______ soluble than NaOH

Question # 24

Which of the following form normal oxide

Question # 25

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

Question # 26

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 27

Chemical composition of colemnite is:

Question # 28

Heavy water is obtained by

Question # 29

Copper oxide is dedected by borax bead test with colour:

Question # 30

Polyanion formation is maximum in

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following is a tetrabasic acid?
A. ORthophosphoric acid
B. Hyposphosphorus acid
C. Metaphosphoric
D. Pyrophosphoric acid
2 ______ is used in breathing equipments for mountaineers and in space craft
A. Li2O
B. BeO
C. N2
D. KO2
3 Boric acid cannot be used:
A. An antiseptic in medicine
B. For washing eyes
C. In soda bottles
D. For enamels and glazes
4 Which element has highest oxidation potential
A. Li
B. Be
C. Ba
D. Ra
5 Calcium carbide reacts with water to produce
A. Acetylene
B. Methane
C. Ethylene
D. Ethane
6 Lithium reacts with air to form
A. Peroxide
B. Normal oxide
C. Superoxide
D. None of these
7 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
8 Which of the following phosphorus is most reactive?
A. Red phosphorus
B. White phosphorus
C. Scrlet phosphorus
D. Violet phosphorous
9 Which property is not present in Al?
A. Reacts with acid
B. Reacts with bases
C. Changes litmus paper
D. Changes methyle orange colour
10 Which of the following compound is industrially prepared by the electrolysis of solution of NaCl
A. Na2CO3
B. NaHCO3
C. NaOH
D. NaOCl

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