Science (English Medium) Class 12 - CBSE Question Bank Solutions for Chemistry

Which of the following statements is not correct for nitrogen?

Nitrogen is relatively inactive element because ____________.

Pick out the wrong statement.

Among the 15^th group elements, as we move from nitrogen to bismuth, the pentavalency becomes less pronounced and trivalency becomes more pronounced due to:

Pure nitrogen is prepared in the laboratory by heating a mixture of:

Which of the following oxides is neutral?

The bonds present in N₂O₅ are ____________.

Which of the following oxides of nitrogen is a coloured gas?

In which one of the following oxides of nitrogen, one nitrogen atom is not directly linked to oxygen?

Which of the following oxides of nitrogen reacts with FeSO₄ to form a dark brown compound?

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250°C?

Which of the following can be used as anesthesia?

A deep brown gas is formed by mixing two colourless gases which are:

The laughing gas is ____________.

C – X bond is strongest in ____________.

Which of the following will have the maximum dipole moment?

\[\ce{CH3-O-CH(CH3)2 + HI ->}\] Products is/are:

In lake test for Al³⁺ ions, there is the formation of coloured ‘floating lake’. It is due to ______.

Which one of the following are correctly arranged on the basis of the property indicated?

Given below are two statements labelled as Assertion (A) and Reason (R).

Assertion (A): SO₂ is reducing while TeO₂ is an oxidising agent.

Reason (R): Reducing property of dioxide decreases from SO₂ to TeO₂.

Select the most appropriate answer from the options given below: