Chemistry

The oxide which contains an odd electron at the nitrogen atom is

Given below are two statements:

Statement I: In 'Lassaigne's Test', when both nitrogen and sulphur are present in an organic compound, sodium thiocyanate is formed.

Statement II: If both nitrogen and sulphur are present in an organic compound, then the excess of sodium used in sodium fusion will decompose the sodium thiocyanate formed to given NaCN and Na₂S.

In the light of the above statements, choose the most appropriate answer from the option given below

s-block element which cannot be qualitatively confirmed by the flame test is

Boiling of hard water is helpful in removing the temporary hardness by converting calcium hydrogen carbonate and magnesium hydrogen carbonate to

The role depressants in 'Froth Floatation method' is to

Which of the following elements is considered as a metalloid?

Match List I with List II

           Choose the most appropriate answer from the options given below:

Polar stratospheric clouds facilitate the formation of

The number of radial land angular nodes in 4d orbital are, respectively

Consider the following reaction:

A + alkali  → B(Major Product)

If B is an oxoacid of phosphorous with no P-H bond, then A is