In Kjeldahl's method, the nitrogen present is estimated as-

1. N₂ 

2. NH₃

3. NO₂ 

4 None of the above

In Kjeldahl's method of estimation of nitrogen, K₂SO₄ acts as:

The Prussian blue colour obtained during the test of nitrogen by Lassaigne's test is due to the formation of-

Soda extract is prepared by-

1. Fusing soda and mixture of hydrocarbons, and then extracted with water

2. Dissolving NaHCO₃ and mixture of hydrocarbons in dil. HCl

3. Boiling Na₂CO₃ and mixture of hydrocarbons in dil. HCl

4. Boiling Na₂CO₃ and mixture of hydrocarbons in distilled water

The most stable carbocation among the following is:

1.		2.
3.		4.

The arrangement in decreasing order of stability of $\stackrel{\bullet }{C}$H₃, $\stackrel{\bullet }{C_2}$H₅,(CH₃)₂$\stackrel{\bullet }{C}$H and (CH₃)₃ $\stackrel{\bullet }{C}$ free radicals is-

1. $\stackrel{\bullet }{C}$H₃ > $\stackrel{\bullet }{C_2}$H₅ > (CH₃)₂$\stackrel{\bullet }{C}$H > (CH₃)₃ $\stackrel{\bullet }{C}$  

2. (CH₃)₃ $\stackrel{\bullet }{C}$ > (CH₃)₂$\stackrel{\bullet }{C}$H > $\stackrel{\bullet }{C_2}$H₅ > $\stackrel{\bullet }{C}$H₃

3. $\stackrel{\bullet }{C_2}$H₅ > $\stackrel{\bullet }{C}$H₃ > (CH₃)₂$\stackrel{\bullet }{C}$H > (CH₃)₃ $\stackrel{\bullet }{C}$

4. (CH₃)₃ $\stackrel{\bullet }{C}$ > (CH₃)₂$\stackrel{\bullet }{C}$H >  $\stackrel{\bullet }{C}$H₃  >$\stackrel{\bullet }{{\mathrm{\hspace{0.17em}C}}_2}$H₅ 

The species that contains only three pairs of electrons among the following is: 

Arrange H, CH₃, C₂H₅, and C₃H₇ in order of increasing positive inductive effect:

1. H < CH₃ < C₂H₅ < C₃H₇

2. H> CH₃ <C₂H₅ > C₃H₇

3. H < C₂H₅ < CH₃ <C₃H₇

4. None of the above

Which of the following statements accurately describes the stability of allyl and propyl carbocations?

1. Allyl carbocation (CH₂=CH-CH₂⁺) is more stable than propyl carbocation.

2. Propyl carbocation is more stable than allyl carbocation.

3. Both are equally stable.

4. None of the above.

What is the relationship between the two given molecular structures?