General Science - Online Test
Q1. Organic compounds first evolved in earth required for origin of life were
Answer : Option C
Explaination / Solution:
The organic compounds first evolved in earth required for origin of life were proteins and nucleic acids. Proteins are made of amino acids arranged in different order and DNA and RNA are nucleic acids.
Q2. Avogadro law states that
Answer : Option B
Explaination / Solution:
Equal volumes of all gases under the same conditions of temperature and pressure contain equal number of molecules. This is Avagadros Law.
Q3. For liquid ⇌⇌ vapour equilibrium, at a given temperature, the constant is
Answer : Option B
Explaination / Solution:
The vapour pressure is constant at a given temperature for liquid ⇌ vapour equilibrium. The equilibrium vapour pressure of a compound at a given temperature is an intrinsic property of the compound, meaning it does not depend on variables like volume, quantity of the compound, etc.
Q4. Glucose does not give Schiff’s test because of the formation of cyclic
Answer : Option A
Explaination / Solution:
Schiffs test is given by aldehydes, as aldehydic group is not free here.
Q5. The characteristic feature of which cells have lignified thickening at the corner?
Answer : Option C
Explaination / Solution:
Sclerenchyma consists of long, narrow cells with thick and lignified cell walls having a few or numerous pits.
Q6. Maximum growth occurs in
Answer : Option A
Explaination / Solution:
In growth curve, maximum growth occurs in exponential phase of sigmoid curve. During this periods cells divide mitotically to increase length and girth of the plant.
Q7. Absorption line spectrum is obtained
Answer : Option B
Explaination / Solution:
No Explaination.
Q8. Hierarchical classification refers to
Answer : Option C
Explaination / Solution:
Classification is not a single step process but involves hierarchy of steps in which each step represents a rank or category. Hence, the correct option is To rank one above the other.
Q9. The microscopic domain of physics deals with
Answer : Option C
Explaination / Solution:
Microscopic domain includes atomic,molecular and nuclear phenomena. It can be said as the study of matter.It includes the study of structure and configuration of atom,nucleus and the constitute particles of atom-electron,proton,neutron and interaction with elementary particles like electron,photon etc.
Q10. p – toluenesulphonyl chloride does not react with
Answer : Option C
Explaination / Solution:
does not react with all these amines
