Question 4 :
The hybrid orbital having equal amounts of s and p - characters is:

Question 8 :
Linear combination of two hybridised orbitals belonging to two atoms and each having one electron leads to the formation of:

Question 12 :
Which of the following reagents maybe used to distinguish between but-2-yne and but-1-yne.<br/>

Question 13 :
The first organic compound synthesised in the laboratory from its elements.

Question 22 :
Which of the following phrases are not correctly associated with $S_{N^{1}}$ reaction ?<br>(1) Rearrangement is possible<br>(2) Rate is affected by polarity of solvent<br>(3) The strength of the nucleophile is important in determining rate<br>(4) The reactivity series is tertiary &gt; secondary &gt; primary<br>(5) Proceeds with complete inversion of configuration

Question 24 :
Two hybrid orbitals having a bond angle of $120^0$C. The percentage of $s-$character in the hybrid orbital is nearly:

Question 26 :
The hybrid orbitals with 25% s character is involved in formation of ?

Question 27 :
Compounds which contain oxides of carbon or carbonate hydrogencarbonate ions are called:

Question 29 :
Organic and Inorganic compounds differ from each other in terms of :