Numan does half as much work as Gagan in four-fifth of the time. If together they take 16 days to complete a work, how much time shall Gagan take to do it?
The correct answer is D
______is used to coat Galvanised Iron.
Which of the following glass absorbs ultraviolet rays which are harmful for the eyes.
Which compound/acid commonly known as Aspirin?
Iron, Nickel and Cobalt are the examples of
Protons were discovered by
Potassium Permanganate is used for purifying drinking water, because it –
What is the pH value of pure water ?
Which of the following gas is used to fill balloons.
Amalgam is a mixture of
Aqua regia, which can dissolve gold, is a freshly prepared mixture of concentrated hydrochloric acid and concentrated ______.
