General Science - Online Test
Q1. Diffusion rate is affected by
Answer : Option B
Explaination / Solution:
Diffusion rates are affected by the gradient of concentration, the permeability of the membrane separating them, temperature and pressure.
Q2. Polythene is not one of the following
Answer : Option B
Explaination / Solution:
Polymer is not semi synthetic. It is synthetic.
Q3. The maximum covalency of nitrogen is
Answer : Option C
Explaination / Solution:
N has maximum covalency of 4 since only four (one s and three p) orbitals are available for bonding. d orbitals are not available for bonding.
Q4. According to first law of thermodynamics ΔU = q + w, where
Answer : Option B
Explaination / Solution:
In thermodynamics q=+ve when heat is supplied to the system. And w=+ve when work is done on the system while when work is done by the system w is taken as –ve.
Q5. According to Pascal’s Law the
Answer : Option C
Explaination / Solution:
According to Pascal's Law,
P-P0 = hdg
from above
Change in pressure is directly proportional to depth from the free surface.
At the same horizonatal line all point are at the same depth and have same value of acceleration due to gravity and denity of water as well.
Q6. Fibres and fibroblasts are compactly packed in
Answer : Option D
Explaination / Solution:
Dense irregular connective tissue provide strength to body parts. Hence the cells and fibres are packed compactly.
Q7. Which kingdom brought Chlorella and Chlamydomonas with Paramoecium and Amoeba?
Answer : Option C
Explaination / Solution:
Kingdom Protista has brought together Chlamydomonas, Chlorella which were earlier placed in Algae within Plants and (both having cell walls) with Paramoeciumand Amoeba which were earlier placed in the animal kingdom which lack it.
Q8. Self reliance means
Answer : Option D
Explaination / Solution:
Self reliance means that an economy is not totally dependent on imports and is able to meet its requirements through domestic production.
Q9. The upward sloping supply curve for the foreign exchange reflects
Answer : Option C
Explaination / Solution:
No Explaination.
Q10. Half of the difference between the first and third quartiles
Answer : Option A
Explaination / Solution:
It is based on the lower quartile Q1 and the upper quartile Q3. The difference Q3−Q1 is called the inter quartile range. The difference Q3−Q1 divided by 2 is called semi-inter-quartile range or the quartile deviation.
