Organic chemistry-some basic principles and techniques practice · Medium

Correct IUPAC name of $\left[ {Ni(en)B{r_2}{{(PP{h_3})}_2}} \right]$ is

Among the following the most stable compound is:

In Dumas’ method of estimation of nitrogen 0.35 g of an organic compound gave 55mL of nitrogen collected at 300 K temperature and 715 mm pressure. The percentage composition of nitrogen in the compound would be: (Aqueous tension at 300 K = 15 mm)

In sulphur detection of an organic compound, sodium nitroprusside solution is added to sodium extract.
Formation of violet colour is due to

Which of the following metal sulphite is white
colour?

Which structure can be explained by taking ground state configuration of atom?

At low temperature, the slow addition of molecular bromine to ${\mathrm{H}_2}\mathrm{C} = \mathrm{CH}-\mathrm{C}{\mathrm{H}_2}-\mathrm{C} \equiv \mathrm{CH}$ gives:

In Carius tube, an organic compound ' $\mathrm{X}$ ' is treated with sodium peroxide to form a mineral acid ' $Y$ '.

The solution of $\mathrm{BaCl}_2$ is added to ' $\mathrm{Y}$ ' to form a precipitate ' $Z$ '. ' $Z$ ' is used for the quantitative estimation of an extra element. ' $\mathrm{X}$ ' could be

Which purification technique is used for high boiling organic liquid compound (decomposes near its boiling point)?

$LiAl{H_4}$ is used as:

Which of the following statements is/are incorrect?

The structure of tert-Butyl group in an organic compound is

During elimination reactions, the hybrid state of carbon atoms involved in change shows:

Total number of geometrical isomers in the following compound.
$C{H_3} - CH = CH - CH = CH - CH = CH - {C_6}{H_5}$

Rearrangement is a property of_____

$1.6 \mathrm{~g}$ of an organic compound gave $2.6 \mathrm{~g}$ of magnesium pyrophosphate. The percentage of phosphorus in the compound is

The species which cannot exhibit optical isomerism is

Which of the following is prepared by heating its hydrated salt?

In which of the following options chlorine will act as the best leaving group

Which of the following compound is synthesised by Kolbe and Berthelot respectively that shows that organic compounds could be synthesised from inorganic sources in a laboratory?

The reaction of propene with HBr in the presence of Benzoyl peroxide is an example of

Among the following four compounds:

Which chromatography is based on the fact that different compounds are adsorbed on an adsorbent to different degrees?

Inductive effect involves

Anthracene is purified by:

Assertion (A): Pyrrole, is aromatic and undergoes electrophilic aromatic substitution extremely readily and predominant by at position adjacent to nitrogen.

Reason (R): Nitrogen in the ring bearing a lone pair in conjugation with $\pi$-electrons brings aromaticity to the pyrrole.

The number of asymmetric $\mathrm{C}$-atom created and number of possible stereoisomers when benzil $(\mathrm{Ph} \mathrm{COCO} \mathrm{Ph})$ is reduced with $\mathrm{LiAlH}_4$.

Assertion (A): Simple distillation can help in separating a mixture of propan-1-ol (boiling point $97^{\circ} \mathrm{C})$ and propanone (boiling point $56^{\circ} \mathrm{C}).$
Reason (R): Liquids with a difference of more than $20^{\circ} \mathrm{C}$ in their boiling points can be separated by simple distillation.

Identify, which of the below does not possess any element of symmetry?

Compound that will give positive Lassaigne's test for both nitrogen and halogen is