CSIR UGC JRF NET Chemistry Question Paper

CSIR UGC JRF NET Chemistry Question Paper
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Chemistry - Fill in the Blanks model Questions Chemical Bonding

 

1. There are ____________________ π (pi) bonds in a nitrogen molecule. (JEE 1982)
Anwer : 2

2. __________ hybrid orbitals of nitrogen are involved in the formation of ammonium ion. (JEE 1982)

Answer sp³

3. The terminal carbon atom in butane is _____________ hybridized. (JEE 1985)

Answer sp³

The shape of [CH3] + is ------------------------.
(JEE 1990)
Answer: Triangular planar

4.The valence atomic orbitals of carbon in silver acetylide is _________________.
(JEE 1990)


Answer: sp

5.IN P4O10, the number of oxygen atoms bonded to each phosphorus atom is ____________ .
(JEE 1992)


Answer: 4

6.When N2 goes to N2+
The N—N bond distance _________ and when O2 goes to )2+, the O—O bond distance ______________.


(JEE 1996)
Answer: increases, decreases

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