Formation of 2-butene as major product by dehydration of 2-butanol is according to

• Markownikoff rule

• Saytzeff rule

• Peroxide effect

• Anti-Markownikoff rule

Ethane is formed by the reaction of methyl iodide and sodium metal in dry ether solution. This reaction is known as

• Clemmensen's reduction

• Kolbe's reaction

• Wurtz reaction

• Cannizaro's reaction

Which of the following does not contain chiral carbon atom?

• Lactic acid

• 2-chlorobutanoic acid

• Tartaric acid

• Succinic acid

Base catalysed aldol condensation occurs with

• benzaldehyde

• 2-methyl propionaldehyde

• 2, 2-dimethyl propionaldehyde

• None of the above

125.

Product C is

• 

• 

• 

• 

The boiling points of three isomeric pentanes 1, 2 and 3 are

(1) 9.5°C
(2) 28°C
(3) 36°C
1, 2 and 3 are respectively

• n-pentane, iso-pentane, neo-pentane

• iso-pentane, neo-pentane, n-pentane

• n-pentane, neo-pentane, iso-pentane

• neo-pentane, iso-pentane, n-pentane

In the sequence of reaction,

Starting compound A is-

• RCN

• RNC

• RCHO

• R₂CO

Match List-I with List-II and select the correct answer from the given codes.

List - I (Reaction)	List - II (Reagent/ Catalyst)
A. Cannizaro reaction	1. SnCl2/ HCl
B. Stephen's reaction	2. NaOH
C. Clemmensen reduction	3. Zn/ Hg-conc. HCl
D. Rosenmund's reaction	4. $\frac{\mathrm{Pd}/ {\mathrm{BaSO}}_4}{\mathrm{Boiling} \mathrm{xylene}}$

• A - 1; B - 2; C - 3; D - 4

• A - 2; B - 1; C - 3; D - 4

• A - 4; B - 3; C - 2; D - 1

• A - 1; B - 4; C - 2; D - 3

Haloalkane in the presence of alcoholic KOH undergoes

• elimination

• polymerisation

• dimerisation

• substitution

Grignard reagent is not prepared in aqueous medium but prepared in ether medium. Because

• the reagent reacts with water

• the reagent becomes inactive in water

• it is insoluble in water

• the reagent is highly reactive in water