General Science - Online Test
Q1. Main function of pollen tube is to
Answer : Option B
Explaination / Solution:
Pollen tube is formed by germination of pollen grain on stigma of flower. Pollen grain is transferred from stigma to receptive female gametes by pollen tube formed in the style of the pistil.
Q2. Air at 20.0 in the cylinder of a diesel engine is compressed from an initial pressure of 1.00 atm and volume of 800.0 to a volume of 60.0 . Assume that air behaves as an ideal gas with and that the compression is adiabatic. Find the final temperature of the air
Answer : Option C
Explaination / Solution:
T1V1γ−1=T2V2γ−1T2=T1(V1V2)γ−1=1×(80060)1.4−1=826K
Q3. Which of the following options is monomer units of the below polymer
Answer : Option D
Explaination / Solution:
this is monomer unit present in the above given polymer.
this is monomer unit present in the above given polymer.
Q4. Antagonistic interactions will include
Answer : Option D
Explaination / Solution:
Antagonistic interaction will include predation and parasitism in which one species is benefited and other is harmed.
Q5. Which one of the following organism help in absorption of phosphorus from soil by plants
Answer : Option B
Explaination / Solution:
Glomus is a kind of algae found in soil. This organism help in absorption of phosphorous form soil by plants.
Q6. The process by which small electrolytes are absorbed
Answer : Option B
Explaination / Solution:
Small amounts of monosacharides like glucose, amino acids and some of electrolytes like chloride ions are generally absorbed by simple diffusion.
Q7. How will the image formed by a convex lens be affected if the central portion of the lens is wrapped in a black paper
Answer : Option B
Explaination / Solution:
No Explaination.
Q8. Heroine is commonly called smack is chemically
Answer : Option A
Explaination / Solution:
Heroine or smack is chemically Diacetylmorphine which is a semi-synthetic opioid. It is the 3,6-diacetyl derivative of morphine (hence diacetylmorphine) and is synthesised from it by acetylation. The white, odourless, bitter crystalline form is commonly the hydrochloride salt, diacetylmorphine hydrochloride. It has a high addiction potential.
Q9. The problem of ‘ How to’ is making a choice between
Answer : Option D
Explaination / Solution:
Technology means the correct proportion in which the different factors of production are to be employed. There are two types of techniques. A labour-intensive technique would employ relatively more labour and less capital. On the other hand, capital- intensive technique means more capital and less labour.The context of how to produce is ‘which techniques are to be adopted’?
Q10. In the process of eye donation a particular part of a dead man’s eye is stored and grafted on another person’s eye to restore vision. That donated part of eye is :
Answer : Option D
Explaination / Solution:
Eye donation process involves grafting of cornea of dead man’s eye, which is stored and grafted on another person’s eye to restore vision.
