set 2 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 4 EXERCISES
The following question based on classification of elements, chemical bonding, periodicity in properties & physical transformation topic of general science mcq
(a) Addition of solute to a solution increases its water potential
(b) Water vapour pressure of any solution is lower than vapour pressure of pure water
(c) Boiling point of any water solution is higher than pure water
(d) When a solution is separated with the help of semipermeable membrane, then water flow can be stopped by giving pressure to the solution
The correct answers to the above question in:
Answer: (a)
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Read more chemistry Based General Science Questions and Answers
Question : 1
Newlands could classify elements only upto
a) chlorine
b) calcium
c) copper
d) chromium
Answer »Answer: (b)
Question : 2
The octet rule is not valid for which one of the following molecules?
a) H2S
b) NH3
c) CO2
d) BF3
Answer »Answer: (d)
Question : 3
Give thought to following statements.
- In the process of osmosis, the solvent moves towards a dilute solution from the concentrated solution.
- In reverse osmosis internal pressure but upon a dilute solution.
a) Only 2
b) Both 1 and 2
c) Only 1
d) Neither 1 nor 2
Answer »Answer: (d)
Question : 4
Mendeleev classified elements in
a) eight periods and eight groups
b) seven periods and eight groups
c) increasing order of atomic groups
d) eight periods and seven groups
Answer »Answer: (b)
Mendeleev’s periodic table consists of seven periods and eight groups.
Question : 5
Consider the following statements:
- Maximum covalency of carbon is 4, whereas maximum covalency of silicon is 6.
- The maximum covalency of an element is limited to 6.
a) 2 only
b) Both 1 and 2
c) 1 only
d) Neither 1 nor 2
Answer »Answer: (c)
Question : 6
Match List-I with List-II:
List-I | List-II |
A. Electrolysis | 1. Resistant to corrosion |
B. Anodization | 2. Laws of electrolysis |
C. Electrochemical cell | 3. Recharging of battery |
D. Faraday | 4. Chemical energy into electrical energy |
a) A – (1), B – (3), C – (4), D – (2)
b) A – (3), B – (1), C – (2), D – (4)
c) A – (3), B – (4), C – (1), D – (2)
d) A – (3), B – (1), C – (4), D – (2)
Answer »Answer: (d)
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