General Science - Online Test
Q1. The biological polymer is
Answer : Option A
Explaination / Solution:
Nucleic acid is biological polymers.
Q2. Reasons that the population of an exotic species often increases rapidly when introduced to a new environment, is due which of the following: I. The exotic species is resistant to pesticides II. There is usually a large, underused food source in the new environment III. The exotic species has few natural predators in the new environment
Answer : Option D
Explaination / Solution:
No Explaination.
Q3. The pH of neutral water at is 7.0. As the temperature increases, ionisation of water increases, however, the concentration of ions and ions are equal. What will be the pH of pure water at
Answer : Option C
Explaination / Solution:
pH of water will be around 7 only. Water will be neutral even at 60°C
Q4. Main seat of photosynthesis in leaf is
Answer : Option A
Explaination / Solution:
The palisade parenchymatous cell in the mesophyll region has numerous chloroplasts. Hence, it is the main seat of photosynthesis in leaf.
Q5. According to which model a classical atom is doomed to collapse?
Answer : Option C
Explaination / Solution:
No Explaination.
Q6. The highest categories of classification is
Answer : Option C
Explaination / Solution:
The taxonomic hierarchy Kingdom -> Phylum/Division -> Class -> Order -> Family -> Genus -> Species. Hence, the correct option is Kingdom.
Q7. Natural auxins among the following are: a) IAA, b) IBA, c) NAA and d) 2, 4 D
Answer : Option D
Explaination / Solution:
Auxins like IAA and indole butyric acid (IBA) have been isolated from plants.(naturally) NAA (naphthalene acetic acid) and 2, 4-D (2, 4-dichlorophenoxyacetic)are synthetic auxins.
Q8. Greater the value of KH, lower will be the
Answer : Option C
Explaination / Solution:
Pgas= KH× Xgas.Xgas
is measure of solubility of gas.
is measure of solubility of gas.
Q9. Industrial sector and agricultural sector are
Answer : Option B
Explaination / Solution:
Agricultural sector and industrial sector are complementary to each other as Agricultural sector provides raw material to industrial sector which is used as input in their manufacturing industries.
Q10.
Which organism is shown in figure below
Answer : Option B
Explaination / Solution:
The plants parts shown below is the leaf of Bryophyllum having small plantlets on its margin. The vegetative reproduction by leaves occurs in this species.
