Recent questions in Chemistry

Concentration of chlorine for water purification is

asked Mar 10, 2014 by meena.p

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The common features among the species $CN^-,CO$ and $NO^+$ are :

asked Mar 10, 2014 by sreemathi.v

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Which of the following drug must not be taken empty stomach ?

asked Mar 10, 2014 by meena.p

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The dipole moment of a hydrogen halide $H-X$ is 1.80 and the bond length is 1.5$A^{\large\circ}$.The percentage of ionic character of H-X bond will be :$(e=4.8\times 10^{-10}$e.s.u)

asked Mar 10, 2014 by sreemathi.v

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Which of the following drugs disturb vision sharing ?

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Find the bond angle of $H_2S$.If the S-H bond moment is 0.72D and $\mu=0.95D$

asked Mar 10, 2014 by sreemathi.v

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Which statement best describes the structure of $PF_3Cl_2$

asked Mar 10, 2014 by sreemathi.v

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Name the dye whose chemical structure is shown :

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Magnetic moment of $K_3Fe(C_2O_4)_3.3H_2O$ is

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Which of the following is the correct order of O-O bond length in $O_2,H_2O_2$ and $O_3$ is :

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Which of the following is an antiseptic dyes?

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Which of the following is the correct order for the strength of hydrogen bonds

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What is the percentage of ionic character of HCl.If $\mu=1.02D$, bond length is $1.275\overset{\circ}{A}$ ($e=4.8\times 10^{-10}$e.s.u)?

asked Mar 10, 2014 by sreemathi.v

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C-C bond in $C_2H_6$ undergoes heterolytic fission,the hybridisation of carbon is/are

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Which of the following is the correct order of bond angle ?

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The molecule that will have dipolemoment is

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Which one of the following would require the largest amount of energy to cause dissociation

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Property of $0.2 \%$ and $1.0 \%$ phenol solution is respectively

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In which one of the following pairs,molecules/ions have similar shape?

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Which of the following set of drugs is antihistamine?

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In which one of the following pairs,the species have similar geometry

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Which of the following is the correct order of dipole moment value?

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How many naturals penicillins have been isolated so far ?

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Chloramphenical is very effective against ?

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Which of the following dyes get attached to the fibre loy an irreversible chemical reaction?

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Among the following molecules,the dipole moment is the highest for

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Which one of the following compound contains a cation having non-inert gas outermost configuration?

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In which group of dyes Malachite green lies?

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How does the strength of the charge-charge interaction between two ions depend on the separation in the absence of any other ions?

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Among the following the correct statement is

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The bond dissociation energy of $B-F$ in $BF_3$ in 646KJ$mol^{-1}$ whereas that of C-F in $CF_4$ is 515KJ$mol^{-1}$. The correct reason for higher B-F bond dissociation energy as compared to that of C-F is

asked Mar 10, 2014 by sreemathi.v

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Martius yellow and congo red are examples of which types of dyes?

asked Mar 10, 2014 by meena.p

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Which of the following cosmetics are made by camphor?

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Which of the following chemicals are not used to make perfumes?

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$TBHQ$ stands for ,

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Which of the following is not an antioxidant ?

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Which type of salt is responsible for deoxygenation of water?

asked Mar 10, 2014 by meena.p

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The surface tension of which of the following liquid is maximum

asked Mar 9, 2014 by sharmaaparna1

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For a gas $\large\frac{R}{C_v}$$ = 0.67$ the gas may be

asked Mar 9, 2014 by sharmaaparna1

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The ratio of Boyle's temperature and critical temperature for a gas is

asked Mar 9, 2014 by sharmaaparna1

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The temperature at which $H_2$ has the same RMS speed (at 1 atm) as that of $O_2$ at NTP is

asked Mar 9, 2014 by sharmaaparna1

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The Volume occupied by molecules of one mole of gas at NTP , having radius $10^{-8}cm$ is approximately:

asked Mar 9, 2014 by sharmaaparna1

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The RMS speed of the molecules of diatomic gas is U, when the temperature is doubled , the molecules dissociates into two atoms . The new RMS speed of the atom is

asked Mar 9, 2014 by sharmaaparna1

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Which of the following has ester linkage?

asked Mar 7, 2014 by thanvigandhi_1

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Which of the following is used in paints?

asked Mar 7, 2014 by thanvigandhi_1

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Monomer of the following diagram is

asked Mar 7, 2014 by thanvigandhi_1

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Which of the following statement is correct

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Which of the following can be used as plasticizers?

asked Mar 7, 2014 by thanvigandhi_1

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The addition homopolymers are

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Which of the following is a thermosetting polymer?

asked Mar 7, 2014 by thanvigandhi_1

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