Questions

In a water molecule, the ratio of mass of Hydrogen to the mass of Oxygen is always:

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.

Books are our ______ friends. They are our guides. We can learn everything from them. The books contain all the great ______ of the world's leaders and we can learn them by reading the books. The books help us find ______ to our questions. The books never fail us. We should read as ______ books as we can. But all books are not good. So we should ______ only good books.

The books help us find ______ to

Read each sentence to find out whether there is any error in any underlined part and indicate your response in the Answer Sheet against the corresponding letter i.e., (a) or (b) or (c). If you find no error, your response should be indicated as (d).

 The difference between exports and imports is called-? 

Which answer figure will complete the pattern?

A newborn human baby is fed with the first secretion called colostrum from mammary gland. What does colostrum impart?

Which north-eastern state of India has signed up to host the 39th National Games in the year 2022?

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