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Questions >> JEEMAIN and NEET >> Chemistry

Chemistry

The number of anti-bonding electrons in CO molecules is

asked Dec 6, 2013 by sreemathi.v

1 answer

In allene, hybridization of the central and terminal carbons, respectively, are

asked Dec 6, 2013 by sreemathi.v

1 answer

Which of the following molecule exhibits the largest bond angle?

asked Dec 6, 2013 by sreemathi.v

1 answer

Molecular orbital theory predicts the $F_2^{2+}$ ion has a bond order of

asked Dec 6, 2013 by sreemathi.v

1 answer

The number of electrons in the $\sigma$ 2p molecular orbital in $N_2^+$ is

asked Dec 6, 2013 by sreemathi.v

1 answer

The hybridisation and shape of the $[Pt(Cl)_4]^{2-}$ is

asked Dec 6, 2013 by sreemathi.v

1 answer

In which physical state of a compound, the magnitude of hydrogen bonding is very high

asked Dec 6, 2013 by sreemathi.v

1 answer

In $C_2H_5OH$ , which type of hydrogen bond can be observed

asked Dec 6, 2013 by sreemathi.v

1 answer

In most stable structure of $ClF_3$ molecule, how many lone pairs are there in equatorial positions

asked Dec 6, 2013 by sreemathi.v

1 answer

The number of $\pi-$ bonds in ethane, ethene and ethyne are respectively

asked Dec 6, 2013 by sreemathi.v

1 answer

According to VSEPR theory, which of the following is non-linear molecule

asked Dec 6, 2013 by sreemathi.v

1 answer

Consider the following reaction of 1-methyl cyclohexene with NBS.Four likely products of the reaction are shown below. One of the likely product is not shown however

asked Dec 5, 2013 by sreemathi.v

1 answer

Reactant B of the reaction is

asked Dec 5, 2013 by sreemathi.v

1 answer

The reactivity of which H atom is maximum for Halogenation by free radical mechanism?

asked Dec 5, 2013 by sreemathi.v

1 answer

Refer to the below reaction :

asked Dec 5, 2013 by sreemathi.v

1 answer

Reaction of 1 molr of each $Br_2$ and phco $CH_2CH_3$ in basic solution yields 0.5 moles of ph $COCBr_2CH_3$ And 0.5 moles of unreacted ph $COCH_2CH_3$ . It suggests:

asked Dec 5, 2013 by sreemathi.v

1 answer

Which radical is responsible for the observed selectivity in the following selectivity in the following chain reaction ?

asked Dec 5, 2013 by sreemathi.v

1 answer

DImerisation product of cyclhexene under acidic conditions is

asked Dec 5, 2013 by sreemathi.v

1 answer

Which alkene when treated with benzene in presence of $H^+$ gives 1,1 diphenylethane

asked Dec 5, 2013 by sreemathi.v

1 answer

Bromination of carbonyl compound at $\alpha$ position is

asked Dec 5, 2013 by sreemathi.v

1 answer

Refer to the below equation :

asked Dec 5, 2013 by sreemathi.v

1 answer

Which of the following is likely mechanism for the transformation shown below?

asked Dec 5, 2013 by sreemathi.v

1 answer

Which is the least likely protonation site in the conjugated alkene given below:

asked Dec 5, 2013 by sreemathi.v

3 answers

Refer to the below reaction:

asked Dec 5, 2013 by sreemathi.v

1 answer

What is the most likely product of the following reaction?

asked Dec 5, 2013 by sreemathi.v

1 answer

Refer to the below equation :

asked Dec 5, 2013 by sreemathi.v

1 answer

Refer to the below reaction :

asked Dec 5, 2013 by sreemathi.v

1 answer

Refer to the below reaction :

asked Dec 5, 2013 by sreemathi.v

1 answer

An aromatic alkyne on treatment with $H_2SO_4$ gives acetophenone .The alkyne is

asked Dec 5, 2013 by sreemathi.v

1 answer

An alkyne on treatment with cold alkaline $KMnO_4$ gives $2-oxo$ propanal. Alkyne is

asked Dec 5, 2013 by sreemathi.v

1 answer

Refer to the below reaction:

asked Dec 5, 2013 by sreemathi.v

1 answer

Refer to the below reaction :

asked Dec 5, 2013 by sreemathi.v

1 answer

A type of fuel containing

asked Dec 4, 2013 by sreemathi.v

1 answer

Alkanes containing 6 or more carbon atoms catalytically treated under pressure, passed over chromic oxide carried on an alumina support at temperature ranging 480-550 degree C,eventually

asked Dec 4, 2013 by sreemathi.v

1 answer

Which of the following alkene is most reactive towards epoxidation with MCPBA (meta chloro per benzoic acid)

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below reaction:

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below reaction :

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below reaction :

asked Dec 4, 2013 by sreemathi.v

1 answer

Which of the following is most reactive diene?

asked Dec 4, 2013 by sreemathi.v

1 answer

Some alkanes may be prepared by adding an alkyl iodide dropwise to sodium in a suitable inert solvent

asked Dec 4, 2013 by sreemathi.v

1 answer

Find out the valid statement

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below equation :

asked Dec 4, 2013 by sreemathi.v

1 answer

Which of the following statement is correct regarding the molecule A

asked Dec 4, 2013 by sreemathi.v

1 answer

Which of the following alkanes can be synthesized by Wurtz reaction in good yield?

asked Dec 4, 2013 by sreemathi.v

1 answer

Which of the following alkanes will give single product with a methele insertion?

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below reaction :

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below reaction:

asked Dec 4, 2013 by sreemathi.v

1 answer

An unknown compound decolourises bromine in carbon tetrachloride and it undergoes catalytic reduction to give decalin. When treated with warm, concentrated potassium permangate, this compound give cis-cyclohexane-1,2- dicarboxylic acid and oxalic acid. Propose a structure for the unknown compound.

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below equation :

asked Dec 4, 2013 by sreemathi.v

1 answer

Refer to the below reaction :

asked Dec 4, 2013 by sreemathi.v

1 answer

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