The correct order of acid and basic strength for the following pair of compounds should be?

(1) I > II ; III > IV ; V > VI ; VII < VIII

(2) I < II ; III > IV ; V < VI ; VII > VIII

(3) I > II ; III > IV ; V > VI ; VII > VIII

(4) I < II ; III > IV ; V < VI ; VII < VIII

Observe the following reaction :

Which of the following is the correct order of acid strength :

(1)
(2)
(3)

(4)

Consider following compounds and decide as to which of the following statements are true ?

(1) (II) gives no reaction with Na metal, however, 1 mole of (IV) on reaction with Na metal will liberate 22.4 litres of H₂ gas at STP

(2) (I) will give brisk effervescence on addition of NaHCO₃ but will not bring any change in the colour of Br₂ water

(3) (III) Iiberates H2 gas with Na metal, gives white precipitate with Tollen's reagent but does not respond towards lucas reagent or 2, 4–DNP test.

(4) (IV) gives turbidity with anhydrous ZnCI₂

Which of the following carbocation will undergo rearrangement ?

1.  

2.

$3. {\mathrm{CH}}_3-\underset{ |}{\mathrm{C}}$
${\mathrm{CH}}_3\mathrm{H}-\stackrel{\oplus }{\mathrm{C}}=\mathrm{O}$

$4. {\mathrm{CH}}_3-\mathrm{NH}-\stackrel{\oplus }{\mathrm{C}}\mathrm{H}-\underset{|}{\mathrm{C}}$
${\mathrm{CH}}_2\mathrm{H}-{\mathrm{CH}}_3$

The colour of the solution that gets formed by mixing sodium nitroprusside to an alkaline solution of sulfide ions, is-

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

1. N₂ 

2. NH₃

3. NO₂ 

4 None of the above

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

A compound that does not give a positive test in Lassaigne’s test for nitrogen is:

1. Urea

2. Hydrazine

3. Azobenzene

4. Phenylhydrazine

The IUPAC name of the compound is:

1. 2-Methyl-6-oxohex-3-enamide

2. 6-Keto-2-methyl hexanamide

3. 2-Carbamoylhexanal

4. 2-Carbamoylex-3-enal

The correct IUPAC name of the given compound is:



1. Methyl 2-ethylbutanoate

2. 1-Methoxy-2-ethylbutanone

3. 3-Methoxycarbonylpentane

4. 1-methoxy-2-ethylbutanal