Questions

The diagonal of a square is 10√2 cm, find its perimeter?

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'.
I was taken with surprise (1)/ when I saw (2)/ the beautiful Taj Mahal. (3)/ No Error (4)

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'.
Grandfather led (1)/a peaceful life after his (2)/retirement from the army.(3)/No Error (4)

For what is Mohs scale used?

Exobiology refers to

Which one of the following is a bad Thermal Conductor?

Acid rain is caused by release of ___ and___ into the air.

In the modern periodic table, which of the two periods contain 8 elements each?