p-Block Element...

Which among the following compound, nitrogen shows the oxidation state of +5?

Which among the following forms basic oxide?

In laboratory ammonia is prepared by heating

Ammonia has a higher boiling point and is less volatile because of

Which compound is used as the cooling liquid in refrigerators?

At what temperature white phosphorous changes to red phosphorous?

  is the structure of

Elements of which group are known as ore forming elements?

Most metal oxides are

The stability of hydrides of group 16 elements decreases in the order

Formula of oleum is

Which among the following does not exhibit positive oxidation state?

Which of the following is the strongest Lewis base?

Hydrogen sulphide reacts with lead acetate forming a black compound which reacts with hydrogen peroxide to form another compound. The colour of the compound is

Which of the following is thermally the most stable?

Which of the following is prepared by cyanamide process?

Ozone can be detected by using

Which of the following oxides reacts with both HCl and NaOH?

Name the gas whose formula was established by Sorret?

Which colour is given by CuSO₄ with ammonia?

Xenondifluoride is

A metal X on heating in nitrogen gas gives Y. Y on treatment with water gives a colourless gas which when passed through copper sulphate solution gives a blue colour. Y is

The reagent used to distinguish between H₂O₂ and O₃ is:

When chlorine is passed through concentrated hot solution of KOH, the compound formed is

Ammonia can be dried using