How many geometrical isomers are possible of the following?

 CH₃-CH=CH-CH=CH-CH₃

1. 2             2. 3

3. 4             4. 6

The configuration of given tartaric acid is

1. 2R, 3R         2. 2R, 3S

3. 2S, 3S         4. 2S, 3R

Correct IUPAC name of the compound 

1. 4-(Ethyl methanolyonxy)phenylpropanoate

2. Ethyl 4-propanoyloxybenzenecarboxylate

3. 4-(1-Oxo-2-oxabutyl)phenylpropanoate

4. 1-(1-Oxo-2-oxbutyl)-4-(1-oxopropoxy)benzene

The IUPAC name of the following compound is

1. 2-(Ethoxycarbonyl)benzoylchloride

2. Ethyl 2-(chlorocarbonyl)benzoate

3. Ethyl 2-(chloromethanoyl)benzoate

4. Methyl 2-(Chlorocarbonyl)benzene carboxylate.

 and are

1. Position isomers

2. Chain isomers

3. Functional isomers

4. Metamers

Which of the following statements about the inductive effect is correct?

Which of the following carbocation will undergo rearrangement ?

1.  

2.

$3.\hspace{0.17em}{\mathrm{CH}}_3-\underset{<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>|}{\mathrm{C}}$
${\mathrm{CH}}_3\mathrm{H}-\stackrel{\oplus }{\mathrm{C}}=\mathrm{O}$

$4.\hspace{0.17em}{\mathrm{CH}}_3-\mathrm{NH}-\stackrel{\oplus }{\mathrm{C}}\mathrm{H}-\underset{|}{\mathrm{C}}$
${\mathrm{CH}}_2\mathrm{H}-{\mathrm{CH}}_3$

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

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