Chemistry - Online Test
Q1. The number of position isomers of is
Answer : Option A
Explaination / Solution:
n-pentyne , 3-methyl butyne, pent-2-yne
Q2. Molarity is preffered over molarity in handling solutions in chemistry laboratory because
Answer : Option A
Explaination / Solution:
Molarity depends upon Volume of solution which changes with Temperature.
Q3. Which of the following respond to the isocyanide test?
Answer : Option B
Explaination / Solution:
Only primary amines undergo carbylamines reaction (isocyanide test)
Q4. The strength of a reductant/oxidant in redox systems can be determined
Answer : Option C
Explaination / Solution:
Because a redox indicator (also called an oxidation-reduction indicator) is an indicator which undergoes a definite color change at a specific electrode potential.
Q5. Solids with conductivities ranging from
Answer : Option B
Explaination / Solution:
They are good conductors of electricity.
Q6. Which of the following is used as for manufacturing conveyor belts, gaskets and hoses.
Answer : Option D
Explaination / Solution:
Neoprene is used in the manufacturing of Conveyor belts and hoses.
Q7. Most metal oxides are
Answer : Option B
Explaination / Solution:
In general, metal oxides are basic and ionic in nature.
Q8. In the case of compounds such as etc which of the following term is used as bond enthalpy.
Answer : Option D
Explaination / Solution:
For polyatomic molecules the term mean bond enthalpy is used for the enthalpy changes associated with chemical bonds.
Q9. The process in which the concentrated ore is heated to a high temperature in the absence of air is known as
Answer : Option B
Explaination / Solution:
Carbonate ore is heated to a high temperature in the absence of air is calcination.
Q10. s-block elements comprise of
Answer : Option A
Explaination / Solution:
s-block contains two group of elements including alkali earth metal and alkaline earth metal.
