set 1 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 2 EXERCISES
The following question based on inorganic chemistry topic of general science mcq
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 |
(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)
The correct answers to the above question in:
Answer: (d)
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Read more inorganic chemistry Based General Science Questions and Answers
Question : 1
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 »Answer: (c)
Question : 2
Consider the following statements :
- Metals can form positive ions by losing electrons to non-metals.
- Different metals have same reactivities with water and dilute acids.
- A more reactive metal displaces a less reactive metal from its salt solution.
a) 2 and 3
b) 1 and 3
c) 1 and 2
d) 1, 2 and 3
Answer »Answer: (b)
Question : 3
Consider the following statements:
- The discovery of inert gases later on did not disturb Mendeleev’s arrangement.
- In the present periodic table, periodicity in the properties of elements is related to the periodicity in their electronic configurations.
a) 1 and 2 both
b) 2 only
c) 1 only
d) None
Answer »Answer: (a)
Question : 4
Which of the following elements are contained in the fertilizer super-phosphate?
- Phosphorus
- Hydrogen
- Nitrogen
- Calcium
a) 2, 3 and 4
b) 3 and 4
c) 1, 2 and 4
d) 1, 2 and 3
Answer »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.
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