Organic chemistry-some basic principles and techniques practice · Mixed difficulty

Which of the following compounds will show metamerism?

An indicator ‘$X$’ is used for studying the effect of variation in concentration of iodide on the rate of reaction of iodide ion with ${H_2}{O_2}$ at room temp. The indicator ‘$X$’ forms blue colored complex with
compound ‘$A$’ present in the solution. The indicator ‘$X$’ and compound ‘$A$’ respectively are

False statement is

Isomerism among compounds due to the migration of a proton is known as :

Different structures generated due to rotation about, C – C axis, of an organic molecule, are examples of

Arrange the following in decreasing order of acidic strength.

(i) Benzoic acid

(ii) 4-nitrobenzoic acid

(iii) 3,4-dinitrobenzoic acid

(iv) 4-methoxy benzoic acid

The silver salt of a monobasic acid on ignition gave 60% of Ag. The molecular weight of the acid is

Which of the following is strongest nucleophile

The correct IUPAC name of $Cl\mathrm{ }--\mathrm{ }C{H_2}--\mathrm{ }CH\mathrm{ } = \mathrm{ }C{H_2}$ is

If a compound on analysis was found to contain $\mathrm{C} = 18.5\mathrm{\% },\mathrm{\;H} = 1.55\mathrm{\% },\mathrm{\;Cl} = 55.04\mathrm{\% }$ and $\mathrm{O} = 24.81\mathrm{\% }$ then its empirical formula is

The number of optical isomers of 2, 3-dihydroxy butanal is

Given below are two statements:
Statement I: Emulsions of oil in water are unstable and sometimes they separate into two layers on standing.
Statement II: For stabilisation of an emulsion, excess of electrolyte is added.
In the light of the above statements, choose the most appropriate answer from the options given below:

In what order the reagents $Na_2S, NaCl$ and $NaI$ are added to an aqueous solution containing $Ag^+, Cu^{+2}$ and $Ni^{+2}$ ions in order to precipitate $Ag^+$ first, $Cu^{+2}$ second and $Ni^{+2}$ last.

A strong base can abstract an α-hydrogen from :

Which of the following is a primary halide?

Among the following the most stable compound is:

The weakest +M group of the given species is:

Rotational angle requires to get maximum stable conformer from minimum stable conformer in $n$-butane is

The permanent displacement of electron through a chain involving only $\sigma$-bonds is called

Which of the following organic compounds has same hybridization as its combustion product $\left(\mathrm{CO}_2\right)?$

In which of the following $p -$electrons of the halogens are not involved in delocalisation?

Carbon and hydrogen are estimated in organic compounds by

Which one of the following will show optical isomerism?

Arrange the following in order of reactivity towards sulphonation with fuming sulphuric acid
a) Benzene $\quad$ b) Toluene $\quad$ c) Methoxy benzene $\quad$ d) Chloro benzene

In the hydrocarbon .$_{C{H_3}\,\,\, - }^C\,_{CH\,\, = }^5\,_{CH\,\,\, - }^4\,_{C{H_2} - }^3\,_{C\,\,\, \equiv \,}^2\,_{CH}^1$ the state of hybridisation of 1, 3 and 5 are in the following sequence

Which of the following molecules represents the order of hybridization $S{P^2},S{P^2},SP,SP$ from left to right atoms

Correct order of acidity is as follows

How many isomers of ${C_5}{H_{11}}OH$ will be primary alcohols?

Overlap of which of the following atomic orbitals would be maximum to form the strongest covalent bond?

Which is most commonly used to dry organic liquids?