Recent questions in Chemistry

Identify the correct order of boiling points of the following compounds : $CH_3 CH_2 CH_2OH,CH_3CH_{\large 2_2}CH_2CHO , CH_3CH_{\large 2_3}CH_2COOH$

asked Feb 21, 2014 by meena.p

2 answers

A vessel of volume 5 litre contains 1.4g of nitrogen at temperature 1800K. Find the pressure of the gas if $30\%$ of its molecules are dissociated into atoms at this temperature.

asked Feb 20, 2014 by sharmaaparna1

1 answer

An evacuated glass vessel weighs 50.0g when empty 148.0 g when filled with a liquid of density $0.98gmL^{-1}$ and 50.5g when filled with an ideal gas at 760mm Hg of 300K.Determine the molecular weight of the gas.

asked Feb 20, 2014 by sharmaaparna1

1 answer

The Volume of the average adult lung when expanded is about $6L$ at $98.4^{\large\circ}F$. If the pressure of oxygen in inhaled air is $168mm$ of $Hg$ , calculate the mass of $O_2$ required to occupy the lung at $98.4^{\large\circ}F$.

asked Feb 20, 2014 by sharmaaparna1

1 answer

Molecule in which the distance between the two adjacent carbon atoms is large is

asked Feb 20, 2014 by meena.p

1 answer

The IUPAC name of the compounds having the formula

asked Feb 20, 2014 by meena.p

1 answer

Which of the following compound will exhibit geometrical isomerism.

asked Feb 20, 2014 by meena.p

1 answer

Among the following, the compound that can be most readily sulphonated is

asked Feb 20, 2014 by meena.p

1 answer

Which of the following has the highest nucleophilicity

asked Feb 20, 2014 by meena.p

1 answer

Which of the following has the highest nucleophilicity

asked Feb 20, 2014 by meena.p

1 answer

Which of the following has the most acidic hydrogen

asked Feb 20, 2014 by meena.p

1 answer

In the given conformation, if $C_2$ is rotated $C_2 -C_3$ bond anticlockwise by an angle of $120^{\circ}$ then the conformation obtained is

asked Feb 20, 2014 by meena.p

1 answer

Which reagent would you use to accomplish this transformation?

asked Feb 20, 2014 by sreemathi.v

1 answer

What is the most likely result of the reaction conditions shown?

asked Feb 20, 2014 by sreemathi.v

1 answer

Complete the following reaction by filling in the necessary reagents.

asked Feb 20, 2014 by sreemathi.v

1 answer

Which of the following will not show tautomerism?

asked Feb 20, 2014 by sreemathi.v

1 answer

What is the correct name of the following molecule?

asked Feb 20, 2014 by sreemathi.v

1 answer

Predict the product in the following : $CH_3CHO+4HCHO\quad\underrightarrow{\text{Conc aq NaOH}}$

asked Feb 20, 2014 by sreemathi.v

1 answer

The $C-H$ bond distance is the longest in

asked Feb 20, 2014 by meena.p

1 answer

Isomers which can be inter converted through rotation around a single bond are :

asked Feb 20, 2014 by meena.p

1 answer

In $CH_3CH_2OH$ the bond that undergoes heterolytic cleavage most readily is

asked Feb 20, 2014 by meena.p

1 answer

What would be the product of the following reaction?

asked Feb 20, 2014 by sreemathi.v

1 answer

An isomer of ethanol is

asked Feb 20, 2014 by meena.p

1 answer

In the following reaction what is X?

asked Feb 20, 2014 by sreemathi.v

1 answer

The bond order of individual carbon-carbon bonds is benzene is :

asked Feb 20, 2014 by meena.p

1 answer

What is X in the following reaction?

asked Feb 20, 2014 by sreemathi.v

1 answer

What is X in the below reaction?

asked Feb 20, 2014 by sreemathi.v

1 answer

Two glass bulbs with equal volume are connected by a narrow tube and filled with a gas at $0^{\large\circ}C$ and pressure of $76\;cm\; Hg$ . One of the bulb is then placed in a water bath maintained at $62^{\large\circ}C$. What is the new value of the pressure inside the bulbs? The volume of the connecting tube is negligible.

asked Feb 20, 2014 by sharmaaparna1

1 answer

Select the molecule which has only one $\pi$-bond

asked Feb 20, 2014 by sreemathi.v

1 answer

1.47 litre of a gas is collected over water at $30^{\large\circ}C$ and 744mm of Hg . If the gas weight 1.98g and vapour pressure of water at $30^{\large\circ}C$ is 32mm , What is the molecular weight of gas?

asked Feb 20, 2014 by sharmaaparna1

1 answer

The decreasing order of $K_{eq}$ values in HCN addition to following aldehydes is

asked Feb 20, 2014 by sreemathi.v

1 answer

A monoatomic ideal gas undergoes a process in which the ratio of P to V at any instant is constant and equal to unity. The molar heat capacity of gas is:

asked Feb 20, 2014 by sharmaaparna1

1 answer

In Victor Mayers experiment 0.23g of a volatile solute displaced air which measures 112mL at NTP .Calculate the vapour density and molecular weight of substance

asked Feb 20, 2014 by sharmaaparna1

1 answer

Predict the product in the following reaction

asked Feb 20, 2014 by sreemathi.v

1 answer

3.7 g of a gas at $25^{\large\circ}C$ occupy the same volume as 0.184g of $H_2$ at $17^{\large\circ}C$ at same pressure. What is moleculer weight of gas?

asked Feb 20, 2014 by sharmaaparna1

1 answer

Which of the following will be a best hydride donor?

asked Feb 20, 2014 by sreemathi.v

1 answer

The cannizzaro reaction is given below :

asked Feb 20, 2014 by sreemathi.v

1 answer

Predict the product in the following reaction

asked Feb 20, 2014 by sreemathi.v

1 answer

A typical compound under goes Cannizzaro's reaction as well as aldol condensation.The possible compound is

asked Feb 20, 2014 by sreemathi.v

1 answer

The below reduction reaction is known as

asked Feb 20, 2014 by sreemathi.v

1 answer

Benzaldehyde differs from acetaldehyde in that

asked Feb 20, 2014 by sreemathi.v

1 answer

Which is a product X of the below reaction:

asked Feb 20, 2014 by sreemathi.v

1 answer

Which is a product F of reaction

asked Feb 19, 2014 by sreemathi.v

1 answer

In the below reaction only $CN^-$ ions are effective because

asked Feb 19, 2014 by sreemathi.v

1 answer

Refer the below reaction:

asked Feb 19, 2014 by sreemathi.v

1 answer

The product of below reaction:

asked Feb 19, 2014 by sreemathi.v

1 answer

Which of the following will be the best reagent for below transformation

asked Feb 19, 2014 by sreemathi.v

1 answer

Which of the following statements are correct ?

asked Feb 19, 2014 by sreemathi.v

1 answer

Haloform reaction may be depicted as follows :

asked Feb 19, 2014 by sreemathi.v

1 answer

Which of the following compounds exhibit Fehling's test?

asked Feb 19, 2014 by sreemathi.v

1 answer

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