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Recent questions tagged chemistry
Questions
Molecular geometries of $SF_4,CF_4$ and $XeF_4$ are :
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
vsepr(valence-shell-electron-pair-repulsion)theory
q28
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Concentration of chlorine for water purification is
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
difficult
asked
Mar 10, 2014
by
meena.p
1
answer
The common features among the species $CN^-,CO$ and $NO^+$ are :
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
molecular-orbital-theory
q27
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Which of the following drug must not be taken empty stomach ?
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
difficult
asked
Mar 10, 2014
by
meena.p
1
answer
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)
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
bond-parameters
q26
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Which of the following drugs disturb vision sharing ?
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
difficult
asked
Mar 10, 2014
by
meena.p
1
answer
Find the bond angle of $H_2S$.If the S-H bond moment is 0.72D and $\mu=0.95D$
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
bond-parameters
q25
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Which statement best describes the structure of $PF_3Cl_2$
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
vsepr(valence-shell-electron-pair-repulsion)theory
q24
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Name the dye whose chemical structure is shown :
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
medium
asked
Mar 10, 2014
by
meena.p
1
answer
Magnetic moment of $K_3Fe(C_2O_4)_3.3H_2O$ is
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
bond-parameters
q23
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Which of the following is the correct order of O-O bond length in $O_2,H_2O_2$ and $O_3$ is :
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
molecular-orbital-theory
q22
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Which of the following is an antiseptic dyes?
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
medium
asked
Mar 10, 2014
by
meena.p
1
answer
Which of the following is the correct order for the strength of hydrogen bonds
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
hydrogen-bonding
q21
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
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)?
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
molecular-orbital-theory
q20
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
C-C bond in $C_2H_6$ undergoes heterolytic fission,the hybridisation of carbon is/are
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
hybridization
q19
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Which of the following is the correct order of bond angle ?
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
vsepr(valence-shell-electron-pair-repulsion)theory
q18
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
The molecule that will have dipolemoment is
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
bond-parameters
q17
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Which one of the following would require the largest amount of energy to cause dissociation
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
bond-parameters
q16
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Property of $0.2 \%$ and $1.0 \%$ phenol solution is respectively
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
medium
asked
Mar 10, 2014
by
meena.p
1
answer
In which one of the following pairs,molecules/ions have similar shape?
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
vsepr(valence-shell-electron-pair-repulsion)-theory
q15
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Which of the following set of drugs is antihistamine?
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
medium
asked
Mar 10, 2014
by
meena.p
1
answer
In which one of the following pairs,the species have similar geometry
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
vsepr(valence-shell-electron-pair-repulsion)theory
q14
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Which of the following is the correct order of dipole moment value?
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
bond-parameters
q13
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
How many naturals penicillins have been isolated so far ?
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
medium
asked
Mar 10, 2014
by
meena.p
1
answer
Chloramphenical is very effective against ?
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
medium
asked
Mar 10, 2014
by
meena.p
1
answer
Which of the following dyes get attached to the fibre loy an irreversible chemical reaction?
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
medium
asked
Mar 10, 2014
by
meena.p
1
answer
Among the following molecules,the dipole moment is the highest for
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
bond-parameters
q12
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Which one of the following compound contains a cation having non-inert gas outermost configuration?
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
valence-bond-theory
q11
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
In which group of dyes Malachite green lies?
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
medium
asked
Mar 10, 2014
by
meena.p
1
answer
Among the following the correct statement is
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
molecular-orbital-theory
q9
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
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
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
molecular-orbital-theory
q8
difficult
asked
Mar 10, 2014
by
sreemathi.v
1
answer
Martius yellow and congo red are examples of which types of dyes?
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
medium
asked
Mar 10, 2014
by
meena.p
1
answer
Which of the following cosmetics are made by camphor?
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
medium
asked
Mar 10, 2014
by
meena.p
1
answer
Which of the following chemicals are not used to make perfumes?
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
medium
asked
Mar 10, 2014
by
meena.p
1
answer
$TBHQ$ stands for ,
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
medium
asked
Mar 10, 2014
by
meena.p
1
answer
Which of the following is not an antioxidant ?
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
medium
asked
Mar 10, 2014
by
meena.p
1
answer
Which type of salt is responsible for deoxygenation of water?
jeemain
cbse
chemistry
class12
unit16
chemistry-in-everyday-life
medium
asked
Mar 10, 2014
by
meena.p
1
answer
The surface tension of which of the following liquid is maximum
jeemain
chemistry
states-of-matter
unit5
class11
medium
q147
asked
Mar 9, 2014
by
sharmaaparna1
1
answer
For a gas $\large\frac{R}{C_v}$$ = 0.67$ the gas may be
jeemain
chemistry
states-of-matter
unit5
class11
medium
q146
asked
Mar 9, 2014
by
sharmaaparna1
1
answer
The ratio of Boyle's temperature and critical temperature for a gas is
jeemain
chemistry
states-of-matter
unit5
class11
medium
q145
mock
asked
Mar 9, 2014
by
sharmaaparna1
1
answer
The temperature at which $H_2$ has the same RMS speed (at 1 atm) as that of $O_2$ at NTP is
jeemain
chemistry
states-of-matter
unit5
class11
medium
q144
asked
Mar 9, 2014
by
sharmaaparna1
1
answer
The Volume occupied by molecules of one mole of gas at NTP , having radius $10^{-8}cm$ is approximately:
jeemain
chemistry
states-of-matter
unit5
class11
medium
q143
asked
Mar 9, 2014
by
sharmaaparna1
1
answer
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
jeemain
chemistry
states-of-matter
unit5
class11
medium
q142
asked
Mar 9, 2014
by
sharmaaparna1
1
answer
Which of the following has ester linkage?
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry-polymers
q43
medium
asked
Mar 7, 2014
by
thanvigandhi_1
1
answer
Which of the following is used in paints?
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry-polymers
q42
medium
asked
Mar 7, 2014
by
thanvigandhi_1
1
answer
Monomer of the following diagram is
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry-polymers
q41
medium
asked
Mar 7, 2014
by
thanvigandhi_1
1
answer
Which of the following statement is correct
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry-polymers
q41
medium
asked
Mar 7, 2014
by
thanvigandhi_1
1
answer
Which of the following can be used as plasticizers?
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry-polymers
q40
medium
asked
Mar 7, 2014
by
thanvigandhi_1
1
answer
The addition homopolymers are
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry-polymers
q39
medium
asked
Mar 7, 2014
by
thanvigandhi_1
1
answer
Which of the following is a thermosetting polymer?
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry-polymers
q38
medium
asked
Mar 7, 2014
by
thanvigandhi_1
1
answer
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