General Science - Online Test
Q1. The variance can never be
Answer : Option B
Explaination / Solution:
It is a square of standard deviation and square of anything is non negative.
Q2. To which block of elements in the periodic table belongs?
Answer : Option D
Explaination / Solution:
d-block element have the general outermost electronic configuration as (n-1)d1-10 ns0-2.
Q3. GBD stands for
Answer : Option A
Explaination / Solution:
Global Burden of Diseases (GBD) is an indicator used by experts to gauge the number of people dying prematurely due to a particular disease as well as the number of years spent by them in a state of ‘disability’ owing to the disease.
Q4. Which of the following monomers form biodegradable polymers?
Answer : Option D
Explaination / Solution:
Glycine + amino caproic acid= nylon 2-nylon 6 3 – hydroxybutanoic acid + 3 – hydroxypentanoic acid = PHBV They are biodegradable.
Q5. The meiocyte of an onion plant contains 32 chromosomes. Calculate the number of chromosomes found in its endosperm
Answer : Option C
Explaination / Solution:
The meiocyte cell are diploid so, haploid cell will contain 16 chromosomes. The endosperm cell are formed by fusion of two polar nuclei and one male gametes so, endosperm cells are triploid that will contain 16x3= 48 chromosomes.
Q6.
Three vessels of equal capacity have gases at the same temperature and pressure. The first vessel contains neon (monatomic), the second contains chlorine (diatomic), and the third contains uranium hexafluoride (polyatomic). In which case is the largest?
Answer : Option C
Explaination / Solution:
Neon has smaller molecular wt in comparision to chlorine and uranium hexafluoride. So that is largest for neon.
Q7. Species facing competition might evolve mechanism that promotes co-existence rather than exclusion and that mechanism can be
Answer : Option B
Explaination / Solution:
Species facing completion might evolve mechanism that promotes co-existence rather than exclusion that mechanism is called resource partitioning. In which they avoid completion by choosing different times of feeding or different foraging patterns
Q8. They are compound or mixture of chemicals which are added to the soil in order to overcome deficiency of minerals
Answer : Option C
Explaination / Solution:
Fertilizers are compound or mixture of chemicals which are added to the soil in order to overcome deficiency of minerals. Fertilizers are added to restore the nutrient deficiency.
Q9. Which of the following is not a part of human alimentary canal?
Answer : Option B
Explaination / Solution:
The Ilium is the uppermost and largest bone of the pelvis in vertebrates. Duodenum jejunum and colon are parts of human alimentary canal but ileum is not a part of this system.
Q10. Microeconomics studies the behaviour of
Answer : Option D
Explaination / Solution:
The term Micro Economics is derived from the Greek work “Mikros” which means “Small”. Micro economics gives a detailed analysis of one part of the economy or society. It studies the behaviour of individual units of the economy, such as households, firms, industries and markets.
