Questions

Electrons move around the nucleus in _______ motion.

As per Newton's law of gravitation, the force between two bodies is ________.

Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

____ is the most electropositive and ___ is the most electronegative element of the third period of modern periodic table.

Presence of large amounts of nutrients in waters also causes excessive growth of _________ algae.

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.
He could excel in his board exams only after _____ very hard.

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.
Just punishment for wrong doing

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