General Science - Online Test
Q1. Increase in kinetic energy can overcome intermolecular forces of attraction. How will the viscosity of liquid be affected by the increase in temperature?
Answer : Option D
Explaination / Solution:
Viscosity is inversely proportional to temperature., hence viscosity of the given liquid decreases with rise in temperature since, the liquid particles can move more freely as the friction between them become lesser.
Q2. For dissolution of solids in liquids, at a given temperature, the constant is
Answer : Option D
Explaination / Solution:
This is considered at equilibrium process.
Q3. Glycosidiclinkage:is found between
Answer : Option C
Explaination / Solution:
Glycosidic bond is an ether linkage between two monosaccharides.
Q4. Which is the function of companion cells?
Answer : Option A
Explaination / Solution:
companion cell: any of a number of specialized parenchymal cells adjacent to a sieve tube in the phloem of flowering plants, believed to regulate the flow of nutrients through the tube.
Q5. S-shaped graph produced on plotting growth against time is called
Answer : Option A
Explaination / Solution:
S- Shaped growth curve (Sigmoid growth curve) A pattern of growth in which, in a new environment, the population density of an organism increases slowly initially, in a positive acceleration phase; then increases rapidly approaching an exponential growth rate; but then declines in a negative acceleration phase until at zero growth rate the population stabilizes.
This slowing of the rate of growth reflects increasing environmental resistance which becomes proportionately more important at higher population densities.
This type of population growth is termed ‘density dependent’.
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Q6. Emission line spectra of different elements
Answer : Option C
Explaination / Solution:
No Explaination.
Q7. In a scientific name, the name of the author is printed in
Answer : Option B
Explaination / Solution:
Name of the author appears after the specific epithet, i.e., at the end of the biological name and is written in an abbreviated form, e.g., MangiferaindicaLinn. It indicates that this species was first described by Linnaeus. Hence, the correct option is Abbreviated.
Q8. What is central to the growth of physics?
Answer : Option D
Explaination / Solution:
Quantitative measurement is central to the growth of physics because Laws of nature happen to be expressible in more precise mathematical equations.
Q9. Carbylamine reaction is one of the following in the presence of heat
Answer : Option D
Explaination / Solution:
In carbylamines reaction primary amine reacts with chloroform and base to form isocyanide having foul smell.
Q10.
One of the methods of preparing ethylene is given below.This is an example of _______ reaction
Answer : Option B
Explaination / Solution:
Dehydration of alcohols in the presence of alc. KOH to form an alkene is an example of elimination reaction.
