The element of the lanthanide sereis with atomic number 58 is . . . . . . . .

Which of the following properties increases with an increase in atomic number in the first and seventh groups of the …

Which of the following statements is true/false? 1. While moving from left to right in a period, the chemical reactio…

Which of the following atoms has the highest diameter?

The elements of an F-block are called:

Match List I with List II List-I List-II a. Element with smallest atomic radius 1. Cs b. Element with largest atomic …

When oil floats on water, the surface tension of water

The pH value of the solution obtained by complete neutralisation of hydrochloric acid and sodium hydroxide solution w…

Which of these is not a colloid?

The proposition ‘equal volumes of different gases contain equal numbers of molecules at the same temperature and pres…

Which one of the following is used as an anti-freezer, which effectively depresses the freezing point of water in an …

At absolute zero, which one of the following is zero for a gas?