Questions

ISRO built India's first satellite known as _____.

Seismometer was invented by

How long does a train, 75 m long, moving at 60 km/hr take to pass a certain telegraph post?

There are ............ metalloids in the modern periodic table.

The Chemical formula of Methanol is _____.

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate
it by selecting the appropriate option.

Mangoes do not ___________ all at the same time. Hence, they are not plucked on the same day.

Chemical formula for sulphurous acid is:

Most rich coal deposit region is