General Science - Online Test
Q1. In organic compounds, when homolytic cleavage takes place, one of the electrons of the shared pair in a covalent bond goes with each of the bonded atoms. This results in the formation of
Answer : Option D
Explaination / Solution:
free radicals are formed by hemolytic cleavage.
Q2. Saving is an increasing function of income. It is
Answer : Option A
Explaination / Solution:
No Explaination.
Q3. Railways were introduced in India in
Answer : Option C
Explaination / Solution:
The British government introduced the railways in India in 1850.
Q4. Reaction which takes place in one step is known as
Answer : Option C
Explaination / Solution:
Elementary reaction are one step reactions.
Q5. A component part chart can be presented in the form of
Answer : Option B
Explaination / Solution:
Component bar diagrams are suitable for data having different components. Similarly, Circles also can be used to present component data by sub dividing the circle and preparing pie chart.
Q6. A shift from crop farming to other areas of productive activity with a view to raising income known as
Answer : Option B
Explaination / Solution:
Diversification of production is the one aspect of agriculture diversification.
Q7. A stone tied to the end of a string 80 cm long is whirled in a horizontal circle with a constant speed. If the stone makes 14 revolutions in 25 s, what is the magnitude and direction of acceleration of the stone?
Answer : Option C
Explaination / Solution:
Length of the string, l = 80 cm = 0.8 m
Number of revolutions = 14
Time taken = 25 s
Frequency,
Angular frequency,
=
Centripetal acceleration, ac = ω2r
=
= 9.9 ms-2
The direction of centripetal acceleration is always directed along the string, towards the centre, at all points.
Number of revolutions = 14
Time taken = 25 s
Frequency,
Angular frequency,
=
Centripetal acceleration, ac = ω2r
=
= 9.9 ms-2
The direction of centripetal acceleration is always directed along the string, towards the centre, at all points.
Q8. Per Capita GNI means
Answer : Option C
Explaination / Solution:
GNI per capita - Gross national income (GNI) is the sum of value added by all resident producers plus any product taxes (less subsidies) not included in the valuation of output plus net receipts of primary income (compensation of employees and property income) from abroad
Q9. Which stage is marked by terminalisation of chiasmata?
Answer : Option C
Explaination / Solution:
Chismata is formed due to crossing over. During diakinesis of prophase I of meiosis terminalisation of chiasmata takes place which indicates end of crossing over and separation of the non-sister chromatids.
Q10. Which adsorption takes place at low temperature?
Answer : Option D
Explaination / Solution:
Physical adsorption is favoured at low temperature because it involves only vanderwall interactions between adsorbate and adsorbent.
