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

What causes nitrogen to be chemically inert?

Question # 2

Which of the following is the hardest metal among following

Question # 3

Calcium carbide reacts with water to produce

Question # 4

Which of the following is not the reactions of lithium

Question # 5

Which will have the maximum value of heat of hydration

Question # 6

The ore CaSO42H2O has the general name

Question # 7

BiCl3on hydrolysis forms a white precipitate of

Question # 8

Phosphide ion has the electronic structure similar to that of

Question # 9

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

Question # 10

Hypo is used in photography for

Question # 11

Which element among the following belongs to Group IV-A of the periodic table?

Question # 12

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 # 13

Crystalline form of sulphur stable at room temperature is

Question # 14

The chemical formula of chile salt peter is

Question # 15

When SO2is passed through acidified K2Cr2O7solution

Question # 16

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

Question # 17

Which is used in navigational equipments?

Question # 18

On alkali and alkaline earth metals down the group, there is decreasing trend in

Question # 19

HNO2acts as an/a

Question # 20

Aluminium oxide is:

Question # 21

Density of aluminium is (g cm-3):

Question # 22

Sodium forms largely

Question # 23

Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because

Question # 24

The metal with highest electrical resistance at room temperature is

Question # 25

Pb has inert pair of electrons:

Question # 26

The formula of lime stone is

Question # 27

Which element forms an iron with charge 3+?

Question # 28

Which is used to remove air bubbles form metals?

Question # 29

Which one of the following pentafluorides cannot be formed?

Question # 30

The silver bromide in hypo (Na2S2O3) solution is

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Alkali metals react violently with halogens to form
A. Hydrides
B. Halides
C. Anyhydrides
D. None of these
2 The acid used in lead storage cells is
A. Phosphoric acid
B. Nitric acid
C. Sulphuric acid
D. Hydrochloric acid
3 ______ is called milk of magnesia
A. NaOH
B. KOH
C. LiOH
D. None
4 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
5 White P when boiled with strong solution of caustic soda produces
A. Phosphine
B. Posh acid
C. Phosphorous acid
D. None
6 Which will have the maximum value of heat of hydration
A. Na+
B. Cs+
C. Ba+2
D. Mg+2
7 Which of the following elements is not present abundantly in earth's crust?
A. Silicon
B. Aluminium
C. Sodium
D. Oxygen
8 The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is
A. Hypophosphorus acid
B. Orthophosphorus acid
C. Pyrophosphorus acid
D. Metaphosphorus acid
9 The oxide of beryllium is
A. Acidic
B. Amphoteric
C. Superoxide
D. Basic
10 Which property is not present in Al?
A. Reacts with acid
B. Reacts with bases
C. Changes litmus paper
D. Changes methyle orange colour

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