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
- 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
The correct answers to the above question in:
Answer: (d)
Practice classification of elements, chemical bonding, periodicity in properties & physical transformation (set 2) Online Quiz
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Read more chemistry Based General Science Questions and Answers
Question : 1
Which one of the following properties changes with valency?
a) Equivalent weight
b) Molecular weight
c) Atomic weight
d) Density
Answer »Answer: (a)
Question : 2
The technique of chromatography is used to
a) Determine the structure of substances
b) Dry distillation of colouring substances
c) Identify colour substances
d) Separate the substances from a mixture
Answer »Answer: (d)
Question : 3
In an attempt to demonstrate electrical conductivity through an electrolyte, the following apparatus (Fig.) was set up. Which among the following statement(s) is (are) correct?
- Bulb will not glow because electrolyte is not acidic
- Bulb will glow because NaOH is a strong base and furnishes ions for conduction.
- Bulb will not glow because circuit is incomplete
- Bulb will not glow because it depends upon the type of electrolytic solution
![physical chemistry mcq question answer 9](https://careericons.com/adminicon/bunch/images/physical-chemistry-mcq-question-answer-9.png)
a) 2 only
b) 1 and 3
c) 2 and 4
d) 4 only
Answer »Answer: (a)
NaOH being strong base furnish OH– ions in solution which are responsible for electrolytic condition.
Question : 4
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 : 5
Newlands could classify elements only upto
a) chlorine
b) calcium
c) copper
d) chromium
Answer »Answer: (b)
Question : 6
Which of the following statement is not true?
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
Answer »Answer: (a)
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