Questions

Name the Russian chemist who stated that the properties of elements are a periodic function of their atomic masses?

A sentence has been given in Direct/Indirect Speech. Out of the four given alternatives, select the one which best expresses the same sentence in Indirect/Direct Speech.

The visitor enquired, “When is the next train?”

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

My father (were standing) in the balcony, his face clenched in a storm of emotions.

What is the name of the most ancient spiral galaxy that existed 11 billion years ago?

If the distance travelled by an object is zero, then the displacement of the object

Which statement about Ultrabook computers is false?

Who is the newly appointed Foreign Secretary of India who took charge in early 2018?

Exobiology refers to