General Science - Online Test
Q1. What was the resultant found in place marked E?
Answer : Option C
Explaination / Solution:
In Urey and Miller’s experiment the product formed after the continuous sparking in the mixture of gases at high temperature were some amino acids like glycine and alanine. Sugar and nitrogenous base were also obtained from same set up by some other scientist.
Q2. Calculate the temperature of 4.0 mol of a gas occupying 5 at 3.32 bar. (R = 0.083 bar ).
Answer : Option A
Explaination / Solution:
wehavePV=nRTorT=PVnR=3.22bar×5dm34mol×0.083bardm3K−1mol−1=50K
Q3. ATP is
Answer : Option B
Explaination / Solution:
ATP is nucleotide.
Q4. Poverty can impact the environment on a global scale, because
Answer : Option B
Explaination / Solution:
No Explaination.
Q5. Stem of grasses and related plants elongate by the activity of
Answer : Option A
Explaination / Solution:
Grasses belongs to monocotyledonous angiosperms in which secondary growth do not occurs. Plants elongate by the activity of both apical and intercalary meristem.
Q6. Separate xylem and phloem bundles are known as
Answer : Option C
Explaination / Solution:
Separate xylem and phloem bundles are found in dicotyledonous roots. This kind of vascular bundle is called radial vascular bundle.
Q7. Using the Bohr’s model calculate the speed of the electron in a hydrogen atom in the n = 1, 2, and 3 levels.
Answer : Option D
Explaination / Solution:
No Explaination.
Q8. A group of plants with similar traits of any rank is
Answer : Option C
Explaination / Solution:
Each category in taxonomic hierarchy represents a rank and is commonly termed as taxon. Hence, the correct option is Taxon.
Q9. Which of the following options will be correct for the stage of half completion of the reaction A ⇌B.
Answer : Option C
Explaination / Solution:
Equilibrium will be established so = 0
Q10. Which of the following hormone is used to kill dicotyledonous weeds?
Answer : Option C
Explaination / Solution:
2, 4 D (2,4-Dichlorophenoxyacetic acid)are widely used as herbicides. It is widely used to kill dicotyledonous weeds, does not affect mature monocotyledonous plants.
