General Science - Online Test
Q1. In Geiger-Marsden experiment, at the point of closest approach
Answer : Option D
Explaination / Solution:
No Explaination.
Q2. The scientific name of organisms should be written as
Answer : Option C
Explaination / Solution:
Mangiferaindica. Here, Mangifera is a generic name while indica is a specific name.hence, the correct option is Genus species.
Q3. n the Wurtz reaction method of preparation of alkanes, the stoichiometric coefficient of Sodium is
Answer : Option A
Explaination / Solution:
Wurtz reaction is used for the preparation of alkanes from alkyl halides in the presence of sodium and dry ether.For example: CH3Br + 2Na +BrCH3 ---------> CH3CH3 + 2NaBr
Thus two atoms of Na are used.
Q4. Molarity of the solution is
Answer : Option B
Explaination / Solution:
Q5. All the state government imposed land ceiling in 1960 except
Answer : Option B
Explaination / Solution:
In 1959 the Indian national congress resolved that the agragarian legislation to cover restrictions on the size of land holdings must be implemented in all states by the end of 1959. thus, all the state governments imposed land ceilings in the 1960s except for the north-eastern region.
Q6. One of the two components of Revenue budget are
Answer : Option C
Explaination / Solution:
No Explaination.
Q7. As a general rule, the _______ is the best measure of central tendency because it is more precise.
Answer : Option B
Explaination / Solution:
The mean is usually the best measure of central tendency to use when your data distribution is continuous and symmetrical, such as when your data is normally distributed.
Q8. The unemployment rate for ______ are found to be higher than for _____
Answer : Option B
Explaination / Solution:
Hardly 22 percent of women are employed in the country. Roughly 78 percent of women are busy with domestic chores.
Q9. Force is a
Answer : Option D
Explaination / Solution:
Newton's second law of motion gives the quantitative definition of force. The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object
Q10. Redox reaction between copper and aqueous solution of silver nitrate happens when copper rod is dipped in silver nitrate solution. What happens in the final stage?
Answer : Option A
Explaination / Solution:
This is due to the formation of Cu2+ ions in the solution illustrated in following ionic reaction:
Cu(S)+2Ag+(aq)--------------˃Cu2+(aq)+2Ag(s)
Here, Cu is oxidized to Cu2+ (means relasing of 2 electrons from Cu to Cu2+ ) and Ag+ is reduced to Ag(s) (means gaining of 2 electrons from 2Ag+ to 2Ag ) and thus, silver converted into solid state and deposited on copper rod.
