Which is the criterion, on the basis of which, you will determine that particular element I essential ?
Which of the following are the phylum which is the largest (A) and second largest group (B)?
Which is the oldest food items in which microbes were used ?
Which element is heaviest melting and boiling point metal ?
Name the (i) lightest and the (ii) heaviest element (in terms of density)among the transition elements.
Which of the following antibody can be characterized by the following features ? 1. It is the heaviest antibody. 2. The first antibody which come into action after entry of the pathogen. 3. It is a pentamer.
Among the following the heaviest subatomic particle is
What is the sum of protons, electrons and neutrons in the heaviest isotope of hydrogen?