52671 + Interview Questions in Chemistry in Class 11

1.	The production of dihyrogen gas via water-gas shift reaction of given below : CO(g) + H_(2)O(g) underset("catalyst")overset(Delta)to CO_(2)(g) + H_(2)(g) The CO_(2) gas is removed by scrubbing withsolution of
Answer» SODIUM ARSENITE calcium oxide sodium phosphite aluminium oxide Solution :`CO_(2)` is removed by scrubbing the mixture with sodium arsenite.

Discussion

2.	The production cost of hydrogen from a mineral acid using zinc is Rs. 12 per mole. How many electrons is worth of one rupee?
Answer» Solution :Reaction of mineral acid with zinc is given as `Zn+2HClrarrZnCl_(2)+H_(2)` The net reaction is `2H^(+)+2e^(-)rarrH_(2)` 1 mole of `H_(2) = 2` moles of electrons 12 rupees `= (2 xx 6.022) xx 10^(23)` electrons 1 rupee `= ?` NUMBER of electrons worth of ONE rupee `= (1)/(12)xx 2 xx 6.022 xx 10^(23)=1.004xx10^(23)`

Discussion

3.	The product Z of the following reaction is: H_(3)C C-=CHoverset(2HBr)rarrZ
Answer» `H_(3)C CH_(2)CHBr_(2)` `H_(3)C CBr_(2)CH_(3)` `H_(3)C CHBrCH_(2)Br` `BrCH_(2)CH_(2)CH_(2)Br` Answer :B

Discussion

4.	The product (Z) in the following reaction : RCOOH overset(NH_(3))rarr X overset("heat")rarr Y underset("heat")overset(P_(2)O_(5))rarr Z
Answer» `RNH_(2)` `RCN` `RNC` `RCONH_(2)` Solution :`RCOOH OVERSET(NH_(3))rarr UNDERSET((X))(RCOONH_(4))overset(Delta)rarr underset((Y))(RCONH_(2))underset(Delta)overset(P_(2)O_(5))rarr underset((Z))(RCN)`

Discussion

5.	The product 'Y' in the following reaction sequence is:
Answer» SOLUTION :

Discussion

6.	The product 'Y' is:
Answer» Solution :Three benzylic HYDROGEN are REPLACED by -CL GROUP. Followed by DEHYDRATION and Ipso sunstitution.

Discussion

7.	The product (Y) of the following sequences of reactions would be:
Answer» SOLUTION :N//A

Discussion

8.	The product X is
Answer» SOLUTION :

Discussion

9.	The product which is not formed in the following reactions : {:(""CH_(3)""CH_(3)),("\|""\|"),(" "Ph-C-CH-CH-CH-CH_(2)OH overset(HIO_(4)"(excess)")rarr),("\|""\|""\|"),(""OH" "OH" "OH):}
Answer» `HCOOH` `Ph-overset(O)overset(\|\|)(C)-CH_(3)` `OHC-overset(CH_(3))overset(\|)(CH)-CH_(2)OH` `OHC-overset(CH_(3))overset(\|)(CH)-CHO` ANSWER :D

Discussion

10.	The product/s formed when diborane is hydrolysed
Answer» `B_(2)O_(3)` and `H_(3)BO_(3)` `B_(2)O_(3)` only `H_(3)BO_(3)` and `H_(2)` `H_(3)BO_(3)` only Solution :`B_(2)H_(6) + 6 H_(2)O rarr 2 H_(3)BO_(3) + 6 H_(2)`

Discussion

11.	The product of the reaction PhC=Ounderset( H_(3)O^(Θ))overset(LiAID_(4))rarr
Answer» `Ph_(2)CD(OH)` `Ph_(2)CH(OD)` `Ph_(2)CD(OD)` None Answer :A

Discussion

12.	The product of the reaction, CH_(3)COOH overset(P_(2)O_(5))rarr..... Is
Answer» `CO " and " H_(2)O` Formic acid ETHANOIC anhydride Ethyl ethanoate Solution :`CH_(3)COOH + CH_(3)COOH underset(-H_(2)O)overset(P_(2)O_(5))rarr underset("Ethanoic anhydride")(CH_(3) overset(O)overset(\|\|)(C) - O - overset(O)overset(\|\|)(C) - CH_(3))`

Discussion

13.	The product of the following reaction is _______________. C_(2)H_(4(g))+O_(2)overset(Pd//Al_(2)O_(3))rarr.
Answer» acetaldehyde ethylene oxide ethanol ethane Answer :A

Discussion

14.	The product of the following reaction is
Answer» Solution :The compound UNDERGOES nucleophilic AROMATIC substitution followed by reduction of carbonyl GROUP by wolff- kishner reduction.

Discussion

15.	The product of NH_(3)-NH_(2) + H_(2)O_(2) overset(Cu^(2+))tois
Answer» `O_(2)` `H_(2)` `NH_(3)` `N_(2)` Solution :`NH_(2)NH_(2) + 2H_(2)O_(2) OVERSET(Cu^(2+)) to N_(2) + 4H_(2)O`

Discussion

16.	The product of one reaction at 773 K temperature is (C_(7)H_(16) + C_(5)H_(10)). So give the molecular formula and type of reaction.
Answer» Solution :REACTANT is `C_(12)H_(22)` (Decron) and TYPE of REACTION is PYROLYSIS.

Discussion

17.	The product of oxidation of I^(-) " with " MnO_(4)^(-) in alkaline medium is :
Answer» `IO_(3)^(-)` `I_(2)` `IO^(-)` `IO_(4)^(-)` SOLUTION :N//A

Discussion

18.	Theproduct offrequencyof light and wavelength is equal to .....
Answer» Redberg’s CONSTANT Plank.s constant Energy of photon Velocity of light Solution :`lambda=(h)/(mv)` `=(6.26xx10^(-34)xx10^(2))/(9.1xx10^(-31)xx10^(8))` =`7.27xx10^(-10)` m

Discussion

19.	The product of following reaction is PhCH=CHCH=O underset((ii) H_(3)O^(Θ))overset((i) LiAIH_(4))rarr
Answer» `PhCH_(2)CH=CHCH_(2)OH` `Ph(OH)C=CHCH_(3)` `PhCH=CHCH_(2)OH` `PhCH_(2)CH_(2)CH_(2)-OH` ANSWER :D

Discussion

20.	The product of acid hydrolysis of P and Q can be distinguished by
Answer» Lucas reagent 2, 4-DNP Fehling's SOLUTION `NaHSO_(3)` Solution : ACETONE and propanal can be distinguised by Fehling solution

Discussion

21.	The product of acid hydrolysis of P and Q can be distinguished by :
Answer» Lucas reagent 2,4-DNP Fehling's SOLUTION `NaHSO_(3)` Answer :C

Discussion

22.	The product of acid catalysed hydration of 2-phenylpropene is
Answer» 3-phenyl-2-propanol 1-phenyl-2-propanol 2-phenyl-2-propanol 2-phenyl-1-propanol Solution :

Discussion

23.	The product obtained when propene undergoes addition reaction with HBr in the presence of benzoyl peroxide is
Answer» 1-bromopropane 2-bromopropane 1, 2-dibromopropane 2, 2-dibromopropane Answer :A

Discussion

24.	The Product obtained via oxymercuration (HgSO_4 + H_2SO_4) of 1-butyne would be
Answer» `CH_3 - CH_2 - C-overset(O)overset(\|\|)CH_3` `CH_3-CH_2-CH_2 - CHO` `CH_3-CH_2-CHO + HCHO ` `CH_3-CH_2 - COOH+ HCOOH` SOLUTION :Oxy mercuration -de mercuration brings about markowinikoff.s ADDITION of water as

Discussion

25.	The product obtained on fusion of BaSO_(4) and Na_(2)CO_(3) is
Answer» `BaCO_(3)` CaO `Ba(OH)_(2)` `BaHSO_(4)` ANSWER :A

Discussion

26.	The product obtained in the following reaction is
Answer» SOLUTION :

Discussion

27.	The product obtained in fittig reaction of chlorobenzene is …………………… .
Answer» SOLUTION :BIPHENYL

Discussion

28.	The product obtained by reaction of PhCHO & MeCHO in basic medium are :
Answer» `Ph-CH=CH-CHO` Solution :Among `PhCHO to `CANNIZARO reaction.`Ph-CHO& CH_(3)-CHOto Ph -UNDERSET(OH)underset(\|)CH-CH_(2)-CHO`Among Among`CH_(3)CHO to `Aldol Addition Product`CH_(3)-overset(OH)overset(\|)CH-CH_(2)-CHO`

Discussion

29.	The product obtained by treating CH_(3)-CH=CH_(2)+HBr rarr ?
Answer» `CH_(3)-CH_(2)-CH_(2)Br` `CH_(2)BrCH=CH_(2)` `CH_(3)-CH=CHBr` Solution : Here Markownikoff's RULE is followed which states that negative part of ADDENDUM goes to that CARBON which has least hydrogen.

Discussion

30.	In electrolysis of dilute H_2SO_4, what is liberated at anode in the presence of inert electrode ?
Answer» `H_2SO_3` `H_2S_2O_8` `O_2` `H_2` ANSWER :B

Discussion

31.	The product obtained as a result of a reaction of nitrogen with CaC_(2)is
Answer» `CaCN_(3)` `Ca_(2)CN` `CaCN_(2)` `CACN` SOLUTION :`CaC_(2) + N_(2) to CaCN_(2) + C`

Discussion

32.	The product obtained as a result of a reaction of nitrogen with CaC_(2) is______(NEET)
Answer» `CA(CN)_(3)` `CaN_(2)` `Ca(CN)_(2)` `Ca_(3)N_(2)` Solution :`CaC_(2)+N_(2)OVERSET((300-350^(@)C))tounderset("Cacium cyanide")(Ca(CN)_(2))`

Discussion

33.	The product obtained as a result of a reaction of nitrogen with CaC_2 is ……
Answer» CaCN `CaCN_3` `Ca_2CN` `CA(CN)_2` Solution :`N_2 + CaC_2 oversetDeltato Ca(CN)_2+C`

Discussion

34.	The product obtained as a result of a reaction of nitrogen with
Answer» `CA(CN)_3` `CaN_2` `CaCN_2` `Ca_3N_2` ANSWER :C

Discussion

35.	The product 'N' of the following reaction is
Answer» ANSWER :A

Discussion

36.	The product lormed when C Cl_4 reacts with hot water vapours is ………………. .
Answer» SOLUTION :`COCl_2`

Discussion

37.	The product is -
Answer» SOLUTION :

Discussion

38.	The 'product' in the above reaction is :
Answer» This REACTION cannot TAKE place Answer :B

Discussion

39.	The product formed when tertiary butyl chloride is treated with alcoholic KOH is ……………….. .
Answer» SOLUTION :Iso-butylene

Discussion

40.	The product formed when methylamine react with chloroform and alkali is …………….. .
Answer» SOLUTION :`CH_3NC`

Discussion

41.	The product formed when iodoethane is treated with HI in the presence of red phosphorous is ………………… .
Answer» SOLUTION :`CH_3-CH_3`

Discussion

42.	The product formed when but-1-ene is subjected to HBr in the presence of peroxide is
Answer» 1-bromobutane 2-bromobutane 1, 1-dibromobutane 1, 2-dibromobutane. Answer :A

Discussion

43.	The product formed when chlorine gas is passed over hot iron is-
Answer» Iron (II) chloride is formed Iron (III) chloride is formed A mixture of iron(II) chloride and iron (III) chloride is formed No REACTIONS will TAKE place. Answer :B

Discussion

44.	The product formed on reaction of n-butanol with SOCl_(2) in presence of pyridine is
Answer» chlorobutanol 1-chlorobutane chlorobutanone 2-chlorobutane Answer :B

Discussion

45.	the product formed is
Answer» Solution :acid catalysed RING clousure FOLLOWED. Acidic ATTACK makes carbonyl electrophillicleading to nucleophillic attack of hydroxyl OXYGEN.

Discussion

46.	The product formed in the reaction is
Answer» Benzoquinone Benzendiol Benzene SULPHURIC acid Diphenylether Solution :

Discussion

47.	The product formed in the reaction BCl_3 + H_2 O to
Answer» `H_3 BO_3 + HCL` `BrO_3 + HOCL` `B_2 H_6 + HCl` No reaction Answer :A

Discussion

48.	The product formed by the reaction of acetamide with Br_(2) in presence of NaOH is:
Answer» `CH_(3)CN` `CH_(3)CHO` `CH_(3)CH_(2)OH` `CH_(3)NH_(2)` SOLUTION :N//A

Discussion

49.	the product formaed whrn beryllium hydroxide is added to excess of barium hyroxide and heated to above 500^(@)C is:
Answer» A solid mixture of BEO and Be`(OH)_(2)` A solid compond of Be`(OH)_(2) and Ba (OH)_(2)` A solid compound BaBe`(OH)_(4)` A solid compound BaBe`O_(4)` ANSWER :1

Discussion

50.	The product fomed when an queous solution of NaBr is electrolyesed in cell having inert electrode are
Answer» Na and `Br_(2)` Na and `O_(2)` `H_(2) Br_(2), NaOH` `H_(2)` and `O_(2)` Solution :`NaBr overset("ionises")rarrNa^(+)(aq)+Br^(-)(aq)` since the electrode potential of `H_(2)O(-0.83 V)` is HIGHER than that of `Na^(+)` (-2.71) therefore `H_(2)O` is reduced in preference to `Na^(+)` ions at anode `2 br^(-)(aq)RARR Br_(2)(g)+2E^(-)` thus `H_(2)` is liberated at the CATHODE `Br_(2)` at the anode and NaOH is left in the solution

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The production of dihyrogen gas via water-gas shift reaction of given below : CO(g) + H_(2)O(g) underset("catalyst")overset(Delta)to CO_(2)(g) + H_(2)(g) The CO_(2) gas is removed by scrubbing withsolution of

The production cost of hydrogen from a mineral acid using zinc is Rs. 12 per mole. How many electrons is worth of one rupee?

The product Z of the following reaction is: H_(3)C C-=CHoverset(2HBr)rarrZ

The product (Z) in the following reaction : RCOOH overset(NH_(3))rarr X overset("heat")rarr Y underset("heat")overset(P_(2)O_(5))rarr Z

The product 'Y' in the following reaction sequence is:

The product 'Y' is:

The product (Y) of the following sequences of reactions would be:

The product X is

The product which is not formed in the following reactions : {:(""CH_(3)""CH_(3)),("|""|"),(" "Ph-C-CH-CH-CH-CH_(2)OH overset(HIO_(4)"(excess)")rarr),("|""|""|"),(""OH" "OH" "OH):}

The product/s formed when diborane is hydrolysed

The product of the reaction PhC=Ounderset( H_(3)O^(Θ))overset(LiAID_(4))rarr

The product of the reaction, CH_(3)COOH overset(P_(2)O_(5))rarr..... Is

The product of the following reaction is _______________. C_(2)H_(4(g))+O_(2)overset(Pd//Al_(2)O_(3))rarr.

The product of the following reaction is

The product of NH_(3)-NH_(2) + H_(2)O_(2) overset(Cu^(2+))tois

The product of one reaction at 773 K temperature is (C_(7)H_(16) + C_(5)H_(10)). So give the molecular formula and type of reaction.

The product of oxidation of I^(-) " with " MnO_(4)^(-) in alkaline medium is :

Theproduct offrequencyof light and wavelength is equal to .....

The product of following reaction is PhCH=CHCH=O underset((ii) H_(3)O^(Θ))overset((i) LiAIH_(4))rarr

The product of acid hydrolysis of P and Q can be distinguished by

The product of acid hydrolysis of P and Q can be distinguished by :

The product of acid catalysed hydration of 2-phenylpropene is

The product obtained when propene undergoes addition reaction with HBr in the presence of benzoyl peroxide is

The Product obtained via oxymercuration (HgSO_4 + H_2SO_4) of 1-butyne would be

The product obtained on fusion of BaSO_(4) and Na_(2)CO_(3) is

The product obtained in the following reaction is

The product obtained in fittig reaction of chlorobenzene is …………………… .

The product obtained by reaction of PhCHO & MeCHO in basic medium are :

The product obtained by treating CH_(3)-CH=CH_(2)+HBr rarr ?

In electrolysis of dilute H_2SO_4, what is liberated at anode in the presence of inert electrode ?

The product obtained as a result of a reaction of nitrogen with CaC_(2)is

The product obtained as a result of a reaction of nitrogen with CaC_(2) is______(NEET)

The product obtained as a result of a reaction of nitrogen with CaC_2 is ……

The product obtained as a result of a reaction of nitrogen with

The product 'N' of the following reaction is

The product lormed when C Cl_4 reacts with hot water vapours is ………………. .

The product is -

The 'product' in the above reaction is :

The product formed when tertiary butyl chloride is treated with alcoholic KOH is ……………….. .

The product formed when methylamine react with chloroform and alkali is …………….. .

The product formed when iodoethane is treated with HI in the presence of red phosphorous is ………………… .

The product formed when but-1-ene is subjected to HBr in the presence of peroxide is

The product formed when chlorine gas is passed over hot iron is-

The product formed on reaction of n-butanol with SOCl_(2) in presence of pyridine is

the product formed is

The product formed in the reaction is

The product formed in the reaction BCl_3 + H_2 O to

The product formed by the reaction of acetamide with Br_(2) in presence of NaOH is:

the product formaed whrn beryllium hydroxide is added to excess of barium hyroxide and heated to above 500^(@)C is:

The product fomed when an queous solution of NaBr is electrolyesed in cell having inert electrode are