502 + Interview Questions in CHEMISTRY-AT-A-GLANCE IN GENERAL AWARENESS Page 2 InterviewSolution

51.	Which of the following compounds can non-superimposable mirror images?A. B. C. D. none of the above
Answer» Correct Answer - D

Discussion

52.	The end product protein digestion is-A. PeptidesB. PeptonesC. ProtonesD. `alpha`- Amino acids
Answer» Correct Answer - D

Discussion

53.	The compound formed as a result of oxidation of ethyl benzene by `KMnO_(4)` isA. BenzophenoneB. AcetophenoneC. Benzoic acidD. Benzyl alcohol
Answer» Correct Answer - C

Discussion

54.	Identify the end product in the given reaction sepuenceA. GlyoxalB. PropanedialC. Glyoxal + ButanedialD. Glyoxal+Propaneiol
Answer» Correct Answer - B

Discussion

55.	`RCH_(2)OHoverset([O])(to)RCHO` Which of the following oxidising agent is most suitable for above reaction ?A. PCCB. `K_(2)Cr_(2)O_(7)`C. `KMnO_(4)`D. All
Answer» Correct Answer - A

Discussion

56.	In disaccharides, if the reducing groups of monosaccharides, i.e., aldehydic or ketonic groups are bonded, these are non-reducing sugars. Which of the following disaccharide is a non-reducing sugar?A. B. C. D.
Answer» Correct Answer - C

Discussion

57.	The solubility product of AgCI & AgI are `1.1xx10^(-10)` and `1.6xx10^(-16)` respectively. If `AgNO_(3)` is added drop by drop to the solution containing both choride and iodide ions. The salt which will precipitate first ?A. AgIB. `AgNO_(3)`C. AgCID. both AgCI and AgI simultanneously
Answer» Correct Answer - A

Discussion

58.	Which of the following Alkane can not be prepared by hydrogenation of Olefine-A. PropaneB. Iso butaneC. Iso pentaneD. Neo pentane
Answer» Correct Answer - D

Discussion

59.	Alkane is known as olefine due to-A. It is oily in natureB. It gives oily liquid on reaction with `Cl_(2)`C. It is obtained from oily liquidD. It give oil with water
Answer» Correct Answer - B

Discussion

60.	Which of the following compound gives `CO_(2)` on reductive ozonolysis-A. `CH_(2)=CH-CH=CH_(2)`B. `CH_(2)=C=CH-CH_(3)`C. `CH_(3)-CH=CH-CH_(3)`D. `CH_(2)=CH-CH_(3)`
Answer» Correct Answer - B

Discussion

61.	Propanal and pentan-3-one are ozonolysis product of-A. B. C. D. `CH_(3)-CH=CH-underset(CH_(3))underset(\|)(CH)-CH_(2)-CH_(2)-CH_(3)`
Answer» Correct Answer - A

Discussion

62.	Arreange the following towards their reactivity for ESR A. `IgtIVgtIIgtIII`B. `IgtIIgtIVgtIII`C. `IgtIIgtIIIgtIV`D. `IIgtIgtIIIgtIV`
Answer» Correct Answer - A

Discussion

63.	Which of the following pairs of isomers respresents a pair of conformational isomers ?A. B. C. D.
Answer» Correct Answer - C

Discussion

64.	Dipole moment of is 1.5D. The dipole moment of A. 1.5 DB. 3.0 DC. 1.0 DD. 2.35 D
Answer» Correct Answer - A

Discussion

65.	In which reaction hybridisation of underlined atom does not change.A. `underset(-)(B)F_(3)+F^(-)toBF_(4)^(-)`B. `underset(-)(N)H_(3)+H^(+)toNH_(4)^(+)`C. `underset(-)(B)F_(3)+NH_(3)toBF_(3).NH_(3)`D. `underset(-)(S)iF_(4)+2F^(-)toSiF_(6)^(2-)`
Answer» Correct Answer - B

Discussion

66.	The state of hybridisation for the transition state of hydrolysis mechanism of `BCI_(3)` and `SF_(4)` are respectivelyA. `sp^(2),sp^(3)d`B. `sp^(3),sp^(3)`C. `sp^(3),sp^(3)`D. `sp^(3),sp^(3)d^(2)`
Answer» Correct Answer - D

Discussion

67.	Match column-I and Column-II `{:(Column-I,,,,Column-II),((A)SF_(4),,,,(1)"Tetrahedral"),((B)BrF_(3),,,,"(2)Pyramidal"),((C )BrO_(3)^(-),,,,(3)See-saw),((D)NH_(4),,,,(4)Bent-T):}`A. A (3),B (2),C (1), D(4)B. A(3), B(4), C(2), (D)1C. A(2),B(4),C(3), (D)1D. A(1),B(4), C(2),D(3)
Answer» Correct Answer - B

Discussion

68.	Which is not incorrect ?A. Stability order `H-O-underset(O)underset(\|\|)overset(O)overset(\|\|)(S)-O-HltH-O-underset(O)underset(darr)overset(O)overset(uarr)(S)-O-H`B. In `XeF_(6)(s)` hybridisation of anion `tosp^(3)`dC. For `O_(2)` molecule bond order is 2.0D. Bond angle order `CF_(4)ltCH_(4)`
Answer» Correct Answer - C

Discussion

69.	Which is correct ?A. Ionic mobility in aqueous medium `toLi^(+)ltNa^(+)ltK^(+)ltRb^(+)`B. Covalant character `toKClgtCaCl_(2)gtAlCl_(3)gtSnCl_(4)`C. Boiling point order `toH_(2)OgtH_(2)TegtH_(2)S`D. Dipole-dipole attraction `toKCl+H_(2)O`
Answer» Correct Answer - A

Discussion

70.	Which is not correct ?A. White vitriol and epsom salt are isomorphousB. Thermal stability `toBeCO_(3)ltMgCO_(3)ltCaCO_(3)ltSrCO_(3)`C. Solubility `toNaHCO_(3)ltKHCO_(3)ltRbHCO_(3)ltCsHCO_(3)`D. Melting point `toAl_(2)O_(3)ltMgF_(2)`
Answer» Correct Answer - D

Discussion

71.	Which molecule does not exist ?A. `MnF_(4)`B. `SH_(6)`C. `(BCl_(3))_(2)`D. 2 & 3 both
Answer» Correct Answer - D

Discussion

72.	Which of the following can be hydrolysed ?A. `TeF_(6)`B. `NCl_(3)`C. `SF_(6)`D. Both 1 & 2
Answer» Correct Answer - D

Discussion

73.	Nitro Benzene can be prepared from Benzene by using mixture of conc. `HNO_(3)` and conc. `H_(2)SO_(4)` in the mixture, `H_(2)SO_(4)` act as aA. CatalystB. Reducing ReagentC. AcidD. Base
Answer» Correct Answer - C

Discussion

74.	Which of the following methyl diboranes does not exist ?A. `B_(2)H_(4)(CH_(3))_(2)`B. `B_(2)H_(5)(CH_(3))`C. `B_(2)H_(2)(CH_(3))_(4)`D. `B_(2)H(CH_(3))_(5)`
Answer» Correct Answer - D

Discussion

75.	Which of the following is a sesquixide ?A. `N_(2)O_(4)`B. `N_(2)O_(3)`C. `N_(2)O`D. `N_(2)O_(5)`
Answer» Correct Answer - B

Discussion

76.	`HNO_(2)` acts asA. acidB. oxidising agentC. reducing agentD. All
Answer» Correct Answer - D

Discussion

77.	The pair of most abundant alkali metals is ?A. Li & NaB. Na & KC. K & RbD. Na & Rb
Answer» Correct Answer - B

Discussion

78.	Which of the following carbonate of alkali metals has the least thermal stability ?A. `Li_(2)CO_(3)`B. `K_(2)CO_(3)`C. `Cs_(2)CO_(3)`D. `Na_(2)CO_(3)`
Answer» Correct Answer - A

Discussion

79.	Which of the following compound will not form during the hydrolysis of `XeF_(6)` ?A. `XeO_(3)`B. `XeOF_(4)`C. `XeO_(2)F_(3)`D. `XeOF_(3)`
Answer» Correct Answer - D

Discussion

80.	Which of the following polymers is prepared by condensation polymerisation?A. styreneB. Nylon-66C. TeflonD. Rubber
Answer» Correct Answer - B

Discussion

81.	When alkali metals react with liquid ammonia the solution obtained isA. Blue & non-conductingB. Blue & conductingC. Colourless & non-conductingD. Colourless & conducting
Answer» Correct Answer - B

Discussion

82.	Novolac isA. linear condensation product of phenol and formaldehydeB. Cross linked condensation product of urea and formaldehydeC. Cross linked condensation product of phenol and formaldehydeD. linear condensation product of urea and formaldehyde
Answer» Correct Answer - A

Discussion

83.	`Mf + XeF_(4) rarr M^(+) A^(-) (M^(+)-` alkali metal cation) The state of hybridisation of the central atom in A and sphere of the species are:A. `sp^(3)d`, Trigonal bipuramidalB. `sp^(3)d^(3)`, distoted octahedralC. `sp^(3)d^(3)`, pentagonal planerD. No compound formed at all
Answer» Correct Answer - C

Discussion

84.	Hydrolysis of oil by caustic alkali is called-A. EsterificationB. SaponificationC. AcetylationD. Carboxylation
Answer» Correct Answer - B

Discussion

85.	The products obtained on hydrolysis of superoxideA. `MO_(2)+H_(2)OtoM^(+)+OH^(-)+H_(2)O_(2)`B. `MO_(2)+H_(2)OtoM^(+)+OH^(-)+H_(2)O`C. `MO_(2)+H_(2)OtoM^(+)+OH^(-)+H_(2)O_(2)+O_(2)`D. `MO_(2)+H_(2)OtoM^(+)+OH^(-)`
Answer» Correct Answer - C

Discussion

86.	Milk of magnesia is :-A. Suspension of `Mg(OH)_(2)` in waterB. Colloid of `Mg(OH)_(2)` in waterC. True solution of `Mg(OH)_(2)` in waterD. Pure `Mg(OH)_(2)`
Answer» Correct Answer - A

Discussion

87.	The temdency to form halide hydrates in group 2 elements ?A. increases down the groupB. decreases down the groupC. remains constantD. first decreases then increases down the group
Answer» Correct Answer - B

Discussion

88.	The purpose of boiling sodium extract with conc. `HNO_(3)` before testing for halogen is :A. to make solution acidicB. to make solution clearC. to convert `Fe^(+2)` to `Fe^(+3)`D. to convert NaCN to HCN and `Na_(2)S` to `H_(2)S` so that they do not interfere with `AgNO_(3)`
Answer» Correct Answer - D

Discussion

89.	which of the following is not categorised as particulate pollutant ?A. DustB. SmokeC. SmogD. Carbon dioxde
Answer» Correct Answer - D

Discussion

90.	Which of the following is a secondary alkyl halide ?A. Isobutyl chlorideB. Isopentyl chlorideC. Isopropyl chlorideD. Neopentyl chloride
Answer» Correct Answer - C

Discussion

91.	Which of the following detergent belong to ABS-group-A. Sodium Lauryl sulphateB. Sodium dodecyl benzene sulphonateC. Cetytrimethyl ammonium bromideD. Pentaerythrityl stearate
Answer» Correct Answer - B

Discussion

92.	Which of the following belong to secondary air pollutant ?A. COB. HydrocarbonC. Peroxyacetyl nitrate (PAN)D. NO
Answer» Correct Answer - C

Discussion

93.	Which of the following show mutarotation : (a) Glucose (b) Sucrode (c ) Maltode (d) GalactoseA. a,b,cB. b,cC. a,c,dD. b,d
Answer» Correct Answer - C

Discussion

94.	The reagent that brings about the conversion of (R )-butan-2-ol to (R )-2-chlorobutane isA. `SOCl_(2)`B. `PCl_(5)`C. `PCl_(3)`D. all of them
Answer» Correct Answer - A

Discussion

95.	Which of the following conversion is incorrect :A. `CH_(3)CNunderset("or LAH")overset(Na//C_(2)H_(5)OH)(to)CH_(2)CH_(2)NH_(2)`B. `CH_(3)CONH_(2)overset(Br_(2)//KOH)(to)CH_(3)CH_(2)NH_(2)`C. `CH_(3)CONH_(2)overset(NaNO_(2)+HCl)(to)CH_(3)COOH`D. `CH_(3)CONH_(2)overset(P_(2)O_(5))(to)CH_(3)CN`
Answer» Correct Answer - B

Discussion

96.	Which of the following statement is incorrect :-A. Boiling point of alkylhalide is `R-IgtR-BrgtR-ClgtR-F`B. Alkyl halide are soluble in organic solvent and insoluble in water generallyC. Freons are used for aerosol propellant, refrigeration and air conditioning purpose.D. `-o and -m` dichlorobenzene has higher melting point than those of `p-isomer`
Answer» Correct Answer - D

Discussion

97.	Which of the following IUPAC name is incorrectA. 3-Bromo-2-chloropentaneB. Pent-2-en-4-yneC. 3-Bromo-butan-2-olD. 1-Aminopentane-2-thiol
Answer» Correct Answer - B

Discussion

98.	Incorrect match isA. Nylon-6: CaprolactumB. Buna-N : ElastomerC. Alitame : Artificial sweatnerD. Antithistamine : Ranitidine
Answer» Correct Answer - D

Discussion

99.	Which is incorrect statementA. Bithional is added to soap to impart antiseptic propertiesB. Sulphanilamide used in the formation of sulpha drugs.C. Aspartame is the successful and widely used artificial sweetenerD. Soframycin used as an disinfectant.
Answer» Correct Answer - D

Discussion

100.	Which is incorrect statement-A. Boric acid in dilute aqueous solution is weak antiseptic for eye.B. Chloramphenicol used in the treatment of typhoid, eye infection and pneumonia.C. Broad spectrum antibioyics sffective against both gram positive and gram negative bacteras.D. Bithional is used as antifertility drug.
Answer» Correct Answer - D

Discussion

Explore topic-wise InterviewSolutions in .

Which of the following compounds can non-superimposable mirror images?A. B. C. D. none of the above

The end product protein digestion is-A. PeptidesB. PeptonesC. ProtonesD. `alpha`- Amino acids

The compound formed as a result of oxidation of ethyl benzene by `KMnO_(4)` isA. BenzophenoneB. AcetophenoneC. Benzoic acidD. Benzyl alcohol

Identify the end product in the given reaction sepuenceA. GlyoxalB. PropanedialC. Glyoxal + ButanedialD. Glyoxal+Propaneiol

`RCH_(2)OHoverset([O])(to)RCHO` Which of the following oxidising agent is most suitable for above reaction ?A. PCCB. `K_(2)Cr_(2)O_(7)`C. `KMnO_(4)`D. All

In disaccharides, if the reducing groups of monosaccharides, i.e., aldehydic or ketonic groups are bonded, these are non-reducing sugars. Which of the following disaccharide is a non-reducing sugar?A. B. C. D.

The solubility product of AgCI & AgI are `1.1xx10^(-10)` and `1.6xx10^(-16)` respectively. If `AgNO_(3)` is added drop by drop to the solution containing both choride and iodide ions. The salt which will precipitate first ?A. AgIB. `AgNO_(3)`C. AgCID. both AgCI and AgI simultanneously

Which of the following Alkane can not be prepared by hydrogenation of Olefine-A. PropaneB. Iso butaneC. Iso pentaneD. Neo pentane

Alkane is known as olefine due to-A. It is oily in natureB. It gives oily liquid on reaction with `Cl_(2)`C. It is obtained from oily liquidD. It give oil with water

Which of the following compound gives `CO_(2)` on reductive ozonolysis-A. `CH_(2)=CH-CH=CH_(2)`B. `CH_(2)=C=CH-CH_(3)`C. `CH_(3)-CH=CH-CH_(3)`D. `CH_(2)=CH-CH_(3)`

Propanal and pentan-3-one are ozonolysis product of-A. B. C. D. `CH_(3)-CH=CH-underset(CH_(3))underset(|)(CH)-CH_(2)-CH_(2)-CH_(3)`

Arreange the following towards their reactivity for ESR A. `IgtIVgtIIgtIII`B. `IgtIIgtIVgtIII`C. `IgtIIgtIIIgtIV`D. `IIgtIgtIIIgtIV`

Which of the following pairs of isomers respresents a pair of conformational isomers ?A. B. C. D.

Dipole moment of is 1.5D. The dipole moment of A. 1.5 DB. 3.0 DC. 1.0 DD. 2.35 D

In which reaction hybridisation of underlined atom does not change.A. `underset(-)(B)F_(3)+F^(-)toBF_(4)^(-)`B. `underset(-)(N)H_(3)+H^(+)toNH_(4)^(+)`C. `underset(-)(B)F_(3)+NH_(3)toBF_(3).NH_(3)`D. `underset(-)(S)iF_(4)+2F^(-)toSiF_(6)^(2-)`

The state of hybridisation for the transition state of hydrolysis mechanism of `BCI_(3)` and `SF_(4)` are respectivelyA. `sp^(2),sp^(3)d`B. `sp^(3),sp^(3)`C. `sp^(3),sp^(3)`D. `sp^(3),sp^(3)d^(2)`

Match column-I and Column-II `{:(Column-I,,,,Column-II),((A)SF_(4),,,,(1)"Tetrahedral"),((B)BrF_(3),,,,"(2)Pyramidal"),((C )BrO_(3)^(-),,,,(3)See-saw),((D)NH_(4),,,,(4)Bent-T):}`A. A (3),B (2),C (1), D(4)B. A(3), B(4), C(2), (D)1C. A(2),B(4),C(3), (D)1D. A(1),B(4), C(2),D(3)

Which is not incorrect ?A. Stability order `H-O-underset(O)underset(||)overset(O)overset(||)(S)-O-HltH-O-underset(O)underset(darr)overset(O)overset(uarr)(S)-O-H`B. In `XeF_(6)(s)` hybridisation of anion `tosp^(3)`dC. For `O_(2)` molecule bond order is 2.0D. Bond angle order `CF_(4)ltCH_(4)`

Which is correct ?A. Ionic mobility in aqueous medium `toLi^(+)ltNa^(+)ltK^(+)ltRb^(+)`B. Covalant character `toKClgtCaCl_(2)gtAlCl_(3)gtSnCl_(4)`C. Boiling point order `toH_(2)OgtH_(2)TegtH_(2)S`D. Dipole-dipole attraction `toKCl+H_(2)O`

Which is not correct ?A. White vitriol and epsom salt are isomorphousB. Thermal stability `toBeCO_(3)ltMgCO_(3)ltCaCO_(3)ltSrCO_(3)`C. Solubility `toNaHCO_(3)ltKHCO_(3)ltRbHCO_(3)ltCsHCO_(3)`D. Melting point `toAl_(2)O_(3)ltMgF_(2)`

Which molecule does not exist ?A. `MnF_(4)`B. `SH_(6)`C. `(BCl_(3))_(2)`D. 2 & 3 both

Which of the following can be hydrolysed ?A. `TeF_(6)`B. `NCl_(3)`C. `SF_(6)`D. Both 1 & 2

Nitro Benzene can be prepared from Benzene by using mixture of conc. `HNO_(3)` and conc. `H_(2)SO_(4)` in the mixture, `H_(2)SO_(4)` act as aA. CatalystB. Reducing ReagentC. AcidD. Base

Which of the following methyl diboranes does not exist ?A. `B_(2)H_(4)(CH_(3))_(2)`B. `B_(2)H_(5)(CH_(3))`C. `B_(2)H_(2)(CH_(3))_(4)`D. `B_(2)H(CH_(3))_(5)`

Which of the following is a sesquixide ?A. `N_(2)O_(4)`B. `N_(2)O_(3)`C. `N_(2)O`D. `N_(2)O_(5)`

`HNO_(2)` acts asA. acidB. oxidising agentC. reducing agentD. All

The pair of most abundant alkali metals is ?A. Li & NaB. Na & KC. K & RbD. Na & Rb

Which of the following carbonate of alkali metals has the least thermal stability ?A. `Li_(2)CO_(3)`B. `K_(2)CO_(3)`C. `Cs_(2)CO_(3)`D. `Na_(2)CO_(3)`

Which of the following compound will not form during the hydrolysis of `XeF_(6)` ?A. `XeO_(3)`B. `XeOF_(4)`C. `XeO_(2)F_(3)`D. `XeOF_(3)`

Which of the following polymers is prepared by condensation polymerisation?A. styreneB. Nylon-66C. TeflonD. Rubber

When alkali metals react with liquid ammonia the solution obtained isA. Blue & non-conductingB. Blue & conductingC. Colourless & non-conductingD. Colourless & conducting

Novolac isA. linear condensation product of phenol and formaldehydeB. Cross linked condensation product of urea and formaldehydeC. Cross linked condensation product of phenol and formaldehydeD. linear condensation product of urea and formaldehyde

`Mf + XeF_(4) rarr M^(+) A^(-) (M^(+)-` alkali metal cation) The state of hybridisation of the central atom in A and sphere of the species are:A. `sp^(3)d`, Trigonal bipuramidalB. `sp^(3)d^(3)`, distoted octahedralC. `sp^(3)d^(3)`, pentagonal planerD. No compound formed at all

Hydrolysis of oil by caustic alkali is called-A. EsterificationB. SaponificationC. AcetylationD. Carboxylation

The products obtained on hydrolysis of superoxideA. `MO_(2)+H_(2)OtoM^(+)+OH^(-)+H_(2)O_(2)`B. `MO_(2)+H_(2)OtoM^(+)+OH^(-)+H_(2)O`C. `MO_(2)+H_(2)OtoM^(+)+OH^(-)+H_(2)O_(2)+O_(2)`D. `MO_(2)+H_(2)OtoM^(+)+OH^(-)`

Milk of magnesia is :-A. Suspension of `Mg(OH)_(2)` in waterB. Colloid of `Mg(OH)_(2)` in waterC. True solution of `Mg(OH)_(2)` in waterD. Pure `Mg(OH)_(2)`

The temdency to form halide hydrates in group 2 elements ?A. increases down the groupB. decreases down the groupC. remains constantD. first decreases then increases down the group

The purpose of boiling sodium extract with conc. `HNO_(3)` before testing for halogen is :A. to make solution acidicB. to make solution clearC. to convert `Fe^(+2)` to `Fe^(+3)`D. to convert NaCN to HCN and `Na_(2)S` to `H_(2)S` so that they do not interfere with `AgNO_(3)`

which of the following is not categorised as particulate pollutant ?A. DustB. SmokeC. SmogD. Carbon dioxde

Which of the following is a secondary alkyl halide ?A. Isobutyl chlorideB. Isopentyl chlorideC. Isopropyl chlorideD. Neopentyl chloride

Which of the following detergent belong to ABS-group-A. Sodium Lauryl sulphateB. Sodium dodecyl benzene sulphonateC. Cetytrimethyl ammonium bromideD. Pentaerythrityl stearate

Which of the following belong to secondary air pollutant ?A. COB. HydrocarbonC. Peroxyacetyl nitrate (PAN)D. NO

Which of the following show mutarotation : (a) Glucose (b) Sucrode (c ) Maltode (d) GalactoseA. a,b,cB. b,cC. a,c,dD. b,d

The reagent that brings about the conversion of (R )-butan-2-ol to (R )-2-chlorobutane isA. `SOCl_(2)`B. `PCl_(5)`C. `PCl_(3)`D. all of them

Which of the following conversion is incorrect :A. `CH_(3)CNunderset("or LAH")overset(Na//C_(2)H_(5)OH)(to)CH_(2)CH_(2)NH_(2)`B. `CH_(3)CONH_(2)overset(Br_(2)//KOH)(to)CH_(3)CH_(2)NH_(2)`C. `CH_(3)CONH_(2)overset(NaNO_(2)+HCl)(to)CH_(3)COOH`D. `CH_(3)CONH_(2)overset(P_(2)O_(5))(to)CH_(3)CN`

Which of the following IUPAC name is incorrectA. 3-Bromo-2-chloropentaneB. Pent-2-en-4-yneC. 3-Bromo-butan-2-olD. 1-Aminopentane-2-thiol

Incorrect match isA. Nylon-6: CaprolactumB. Buna-N : ElastomerC. Alitame : Artificial sweatnerD. Antithistamine : Ranitidine

Which is incorrect statementA. Bithional is added to soap to impart antiseptic propertiesB. Sulphanilamide used in the formation of sulpha drugs.C. Aspartame is the successful and widely used artificial sweetenerD. Soframycin used as an disinfectant.