General Science - Online Test
Q1. Brass is an example of
Answer : Option B
Explaination / Solution:
Brass is Mettalic Crystal
Q2. Microeconomics is different from macroeconomic s as
Answer : Option A
Explaination / Solution:
No Explaination.
Q3. _____________ is defined as the difference between what the consumer is willing to pay for a product and what he actually pays?
Answer : Option C
Explaination / Solution:
No Explaination.
Q4. In the modern periodic table
Answer : Option B
Explaination / Solution:
In modern periodic table, the elements are arranged in the increasing order of their atomic number. It contains 7 horizontal rows called periods and 18 vertical columns called groups.
Q5. Electric Potential is
Answer : Option C
Explaination / Solution:
Electric potential V is the work done in bringing unit positive charge from infinity to the point in an electric field, and the potential energy is the work done in bringing any finite charge from infinity to the point in an electric field. They are related as,
Q6. Formation of Buna – S, involves polymerization of
Answer : Option A
Explaination / Solution:
Buna S involves the polymerization of 1,3butadiene and styrene.
Q7. Select the correct equation from the following
Answer : Option C
Explaination / Solution:
Diffusion pressure deficit is equal to osmotic pressure minus water potential. Higher the DPD more faster osmosis will occur.(DPD = OP – WP).
Q8. Ammonia has a higher boiling point and is less volatile because of
Answer : Option B
Explaination / Solution:
In the solid and liquid states NH3
is associated through intermolecular hydrogen bonding and therefore it
has higher boiling point and less volatile compared to other hydrides
of group 15.
Q9. Gauge pressure at a point is
Answer : Option C
Explaination / Solution:
Gauge pressure is zero-referenced against ambient air pressure, so it is equal to absolute pressure minus atmospheric pressure. Negative signs are usually omitted
The difference between absolute pressure and atmospheric pressure is what we call gauge pressure (). It can be calculated if we know the absolute and atmospheric pressures using this formula:
Q10. The correct equation for change in enthalpy is:
Answer : Option A
Explaination / Solution:
Enthalpy is a thermodynamic quantity equivalent to the total heat content of a system. It is equal to the internal energy of the system plus the product of pressure and volume.
