General Science - Online Test
Q1. Signaling between cells usually results in the activation of protein
Answer : Option B
Explaination / Solution:
Signaling between cells for transcription of m-RNA from DNA is controlled by an activation of protein kinases. It is present in cytoplasm of cells.
Q2. A particle is oscillating according to the equation X=7 cos 0.5 πt, where t is in seconds. The point moves from the position of equilibrium to maximum displacement in time
Answer : Option B
Explaination / Solution:
No Explaination.
Q3. The compound which is widely used as a white pigment is
Answer : Option D
Explaination / Solution:
ZnO is white in color.
Q4. Only one element of ________ forms hydride.
Answer : Option C
Explaination / Solution:
Only Chromium (Cr) who belongs to group 6 forms hydride.
Elements of group 7, 8, 9 of d – block do not form hydrides at all. This inability of metal, of group 7, 8, 9 of periodic table to form hydrides is referred to as hydride gap of d – block.
Q5. Gene banks are part of
Answer : Option C
Explaination / Solution:
Gene banks are part of ex situ conservation of plants or plant parts. In ex situ conservation, plants parts are maintained in laboratory condition. In in situ conservation, plants are kept in natural condition with protection.
Q6. A closely wound solenoid of 2000 turns and area of cross-section , carrying a current of 4.0 A, is suspended through its centre allowing it to turn in a horizontal plane. If a uniform horizontal magnetic field of T is set up at an angle of with the axis of the solenoid,force and torque on the solenoid are
Answer : Option A
Explaination / Solution:
No Explaination.
Q7. In Young’s double-slit experiment using monochromatic light of wavelength l, the intensity of light at a point on the screen where path difference is λ, is K units. What is the intensity of light at a point where path difference is λ /3?
Answer : Option B
Explaination / Solution:
No Explaination.
Q8.
Most of the alien species do not establish in new areas but some do likely because:
i. they are released from limitations imposed by their native predators and competitors
ii. they might outcompete the native species
Answer : Option C
Explaination / Solution:
Invasive Non- Native Species are accidental or intentional introduction of exotic species to new areas. species that are non-native to a particular area can sometimes spread very quickly. Most do not establish or expand, but some do - likely because they are " released" from limitations imposed by their native predators, parasites, and competitors. in todays globalizing world, invasive species have become perhaps the second- worst threat to native biota. They might outcompete with native species.
Q9. The IUPAC name of KAl(SO4)2.12H2O is
Answer : Option C
Explaination / Solution:
This is double salt so name is written in sequential manner.
Q10. The excretory organ of Saccoglossus is
Answer : Option B
Explaination / Solution:
Saccoglossus belong to phylum Hemichordata and hence the excretory organ is proboscis gland.
