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Borax structure contains ...

Which of the following does not give borax bead test? ...

On addition of mineral acid to an aqueous solution of borax, the compound formed is ...

Chemically Borax is ...

Borax is used ...

The aqueous solution of borax is ...

Borax can be prepared from Boric acid by the action of ...

Borax is prepared from ...

Nitrogen is relatively inactive element because ...

The oxidation of N is highest in ...

Which of the following is least basic? ...

At high temperature nitrogen combine with calcium carbide (CaC2) to give ...

Nitrogen is used to fill electric bulbs because ...

Nitrogen does not form NCl5 while other members of the group (P, As..) does because ...

The commercial preparation of nitrogen ...

The laboratory method of preparation of nitrogen is ...

Which of the following reactions on NH3 gives nitrogen? ...

When heated in air Boron forms ...

The order of the increasing acidic strength of BF3, BCl3, BBr3 is ...

The shape and hybridization in BF3 is ...

Boron when heated with carbon forms ...

Boron reacts with NaOH to form ...

Boron compounds behave as lewis acids because of their ...

Boron trioxide can be reduced to Boron with ...

Boron can be prepared by ...

Bond order for F2 is ...

Which of the following is diamagnetic? ...

Which of the following is most stable? ...

The molecular orbital configuration of O2 is ...

The molecular orbital configuration of N2 is ...