Questions

Which of the following gases is heavier than oxygen?

What is the net charge on Calcium fluoride?

What is the common name of the solution of calcium hydroxide?

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No error'.
Rohit is two year (1)/ junior than Mukesh (2)/ in the office. (3)/ No Error (4)

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

"Jim Crow" shuns the mountains for reasons satisfactory to himself; not so the magpie, the raven, and __________ mischief-maker, Clark's nutcracker. All of which keeps the bird-lover from the East in an ecstasy of surprises until he has _____________ accustomed to his changed environment. One cannot help ___________ into the speculative mood in view of the sharp contrasts ______________ the birds of the East and _________ of the West.

magpie, the raven, and __________ mischief-maker, Clark's nutcracker.

Who discovered Potassium?

Which of the following award is given for distinguished service in any field including service rendered by the Government servants?

Who is the author of "Interpreter of Maladies"?