inorganic chemistry - Category wise Question and Answer Practice Test with Solutions

inorganic chemistry PRACTICE TEST [2 - EXERCISES]

set 1

set 2

Question : 1

Which of the following elements are contained in the fertilizer super-phosphate?

  1. Phosphorus
  2. Hydrogen
  3. Nitrogen
  4. Calcium
Select the correct answer using the codes given below:

a) 2, 3 and 4

b) 3 and 4

c) 1, 2 and 4

d) 1, 2 and 3

Answer: (c)

Superphosphate is made by treating phosphate rock with concentrated H2SO4.

It is Ca(H2PO4)2 and hence contains calcium, hydrogen, and phosphorous according to the oxide formation method.

Question : 2

Match List-I with List-II and select the correct answer using the codes given below the lists:

List-I List-II
A. KNO3 1. Nitric acid, Silver hydroxide
B. AgNO3 2. Hydrochloric acid, Magnesium hydroxide
C. MgCl2 3. Carbonic acid, Ammonium hydroxide
D. (NH4)2CO3 4. Nitric acid, Potassium hydroxide
E. NaCl 5. Hydrochloric acid, Sodium 5ydoxide
Code: (A) (B) (C) (D)

a) A → (4); B → (3); C → (1); D → (2); E → (5)

b) A → (1); B → (2); C → (4); D → (3); E → (5)

c) A → (4); B → (3); C → (2); D → (1); E → (5)

d) A → (4); B → (1); C → (2); D → (3); E → (5)

Answer: (d)

Question : 3 [IAS (Pre) 1997]

Which one of the following is present in the largest amount in terms of percent by mass in the Earth’s crust?

a) Silicon

b) Carbon

c) Oxygen

d) Calcium

Answer: (c)

Question : 4

Consider the following statements :

  1. Metals can form positive ions by losing electrons to non-metals.
  2. Different metals have same reactivities with water and dilute acids.
  3. A more reactive metal displaces a less reactive metal from its salt solution.
Which of these statements are correct?

a) 2 and 3

b) 1 and 3

c) 1 and 2

d) 1, 2 and 3

Answer: (b)

Question : 5

Consider the following statements:

  1. The discovery of inert gases later on did not disturb Mendeleev’s arrangement.
  2. In the present periodic table, periodicity in the properties of elements is related to the periodicity in their electronic configurations.
Which of these statement(s) above is/are correct ?

a) 1 and 2 both

b) 2 only

c) 1 only

d) None

Answer: (a)

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