52671 + Interview Questions in Chemistry in Class 11

1.	................... is used to study the movements of ground water.
Answer» SOLUTION :DEUTERIUM

Discussion

2.	............. Is used in tratment of cancer.
Answer» Paracctamol Taxol Aspirine Peniciline ANSWER :A::B

Discussion

3.	………………. is used in the treatment of typhoid.
Answer» SOLUTION :CHLORAMPHENICOL

Discussion

4.	………………… is used in the treatment of malaria.
Answer» SOLUTION :CHLOROQUINE

Discussion

5.	________ is usedin themanufactureof softsoap .
Answer» `BA(OH)_2` `Na_(2)CO_(3)` `LIOH` `KOH` Answer :D

Discussion

6.	_______ is used in fire extinguishers
Answer» SOLUTION :BAKING SODA

Discussion

7.	_______ is used in dehydrating oils
Answer» SOLUTION :CALCIUM

Discussion

8.	…….. is used for making moulds for making coins.
Answer» SIC `CaC_2` `Be_4C` WC Answer :D

Discussion

9.	................ is used for hydrogen storage applications.
Answer» SOLUTION : INTERSTITIAL HYDRIDES

Discussion

10.	…………………. is used for extinguishing the fire caused by oil or petrol under the commercialname pyrene.
Answer» SOLUTION :TETRACHLOROMETHANE

Discussion

11.	………………. is used for cleaning electronic equipments.
Answer» SOLUTION :TRICHLOROETHYLENE

Discussion

12.	................ is used for bleaching clothes in laundry.
Answer» SOLUTION :`H_(2)O_(2)`

Discussion

13.	………………… is used by deep-sea divers.
Answer» SOLUTION :HELIUM NITROGEN and OXYGEN

Discussion

14.	….. is used as moderator in nuclear reactor.
Answer» `H_2O` `H_2O_2` `D_2O` `NH_3` ANSWER :C

Discussion

15.	________ is used as radiation windows for X-ray tubes
Answer» SOLUTION :BERYLLIUM

Discussion

16.	______ isusedasmildabrasivein toothpaste.
Answer» `CAO` `Ca(OH)_(2)` `CaCO_(3)` `CaCl_(2)` Answer :C

Discussion

17.	......... is used as fire extinguisher.
Answer» `Na_(2)CO_(3)` `NaHCO_(3)` NaOH `KHCO_(3)` ANSWER :B

Discussion

18.	"_________________" is used as an oxidizing agent to bleach dark hair by a redox reaction.
Answer» `H_(2)O` `HO_(2)` `H_(2)O_(2)` `HO^(-)` ANSWER :C

Discussion

19.	…………………. is used as an antiseptic.
Answer» SOLUTION :LODOFORM

Discussion

20.	………………. is used as an anesthetic.
Answer» SOLUTION :HALOTHANE

Discussion

21.	_______ isusedas asourceof oxygeninsubmarine, spaceshuttlesand inemergency breathing apparatus .
Answer» Sodiumoxide Potassium SODIUMSULPHATE Potassiumsuperoxide Answer :D

Discussion

22.	________ isusedas a reducingagentin theextractionof Band Si.
Answer» Potassium Calcium SODIUM Lithium Answer :C

Discussion

23.	________ is used as a coolant in fast breeder nuclear reactor
Answer» SOLUTION :LIQUID NA METAL

Discussion

24.	___________ is unstable in air and is kept in CO_2 atmosphere to avoid decomposition.
Answer» `BeCO_3` `MgCO_3` `CaCO_3` `BaCO_3` ANSWER :A

Discussion

25.	............. is true relation for concentration. [A : Acidity]
Answer» ` M = N XX A` `N = M xx A` `M/N = A` `N - M = A` SOLUTION :`N=("weight of SOLUTE (gm)")/("equivalent wt. of solute" xx "vol. of sol. (lit)")` `N=("weight of solute (gm)"xx A)/("MOLECULAR wt." xx "VOLUME of sol.(lit)")=M xx A`

Discussion

26.	............. is the type of matter based on physical state of matter.
Answer» ELEMENT Gas Compound Mixture Answer :A::B

Discussion

27.	..... is the relative proportion of tritium and protium ?
Answer» SOLUTION :`1:10^18`

Discussion

28.	…. Is the name of C_(6)H_(4)Br_(2)
Answer» SOLUTION :DIBROMOBENZENE

Discussion

29.	....... is the most safest pesticide.
Answer» SOLUTION :NEEM BASED PESTICIDE

Discussion

30.	.................. is the most abundant 90% of all atoms.
Answer» Lithium HYDROGEN Oxygen Silicon Solution :Hydrogen

Discussion

31.	__________ is the main energy currency in hydrogen economy.
Answer» ELECTRICITY Water Dihydrogen GAS DIOXYGEN gas ANSWER :C

Discussion

32.	....... is the lowest layer of atmosphere.
Answer» SOLUTION :TROPOSPHERE

Discussion

33.	__________ is the gas constant.
Answer» a Ve R Te Answer :C

Discussion

34.	___________ is the cofactor of all enzymes that utilize ATP in phosphate transfer and energy release.
Answer» Be Mg Ca Ba Answer :B

Discussion

35.	____ is strength in %W/V of 40 volume containing H_2O_2 solution.
Answer» SOLUTION :`{:(2H_2O_2 to , 2H_2O+ O_2),("68gm","volume at 1 MOL STP =22.4 litre"):}` 1 mol `O_2` at STP = 1 mol `H_2O_2` `therefore` 22.4 litre `O_2` from 68 gm of `H_2O_2` `therefore` 40 litre `O_2` x gm `therefore 22.4/40 = 68/x` `therefore x=(68xx40)/22.4`=121.42 gm/L `H_2O_2` `therefore H_2O_2` %W/V = `121.42/10`=12.14

Discussion

36.	...... is responsible for the deficiency of fluoride.
Answer» SOLUTION :TOOTH DECAY

Discussion

37.	"………….." is producedby action of conc. H_(2)SO_(4) on potassium ferrocyanide.
Answer» ANSWER :`CO`

Discussion

38.	_________ is present as an impurity in dihydrogen.
Answer» OXIDES of NITROGEN OXYGEN Helium Carbon monoxide Answer :A::D

Discussion

39.	…….. is obtained during hydrolysis of SiCL_4
Answer» SILICIC acid SILICON trioxide Sillcones Silicon dioxide Answer :A

Discussion

40.	............ is not a unit of density.
Answer» `kgm^(-3)` `G cm^(-3)` `mg cm^(-3)` `(mg)/(cm^(-3))` ANSWER :D

Discussion

41.	Which of the following is not a colligative property ?
Answer» SOLUTION :VAPOUR PRESSURE

Discussion

42.	.......... is net state function.
Answer» Work Enthalpy Internal energy Entropy Answer :A

Discussion

43.	How is bleaching powder prepared ?
Answer» SOLUTION :`CA(OCI)_(2)`

Discussion

44.	_______ is named as bleaching powder.
Answer» SOLUTION :`CA(OCI)_(2)`

Discussion

45.	........... is made up of same kind of atoms.
Answer» ELEMENT COMPOUND Mixture All of above Answer :A

Discussion

46.	Which is known as a natural insulator?
Answer» SOLUTION :`CaSO_(4).2H_(2)O`

Discussion

47.	.............. is known as Hydrogen sponge.
Answer» SOLUTION :PALLADIUM HYDRIDE

Discussion

48.	……………… is important in some vital biological systems.
Answer» SOLUTION :OSMOTIC PRESSURE

Discussion

49.	....... is formed by attaching carbon monoxide with hemoglobin in blood.
Answer» SOLUTION :Carboxy HEMOGLOBIN COMPLEX

Discussion

50.	.......... is extensive property.
Answer» MASS VOLUME `("mass")/( "volume")` Enthalpy Answer :C

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

................... is used to study the movements of ground water.

............. Is used in tratment of cancer.

………………. is used in the treatment of typhoid.

………………… is used in the treatment of malaria.

________ is usedin themanufactureof softsoap .

_______ is used in fire extinguishers

_______ is used in dehydrating oils

…….. is used for making moulds for making coins.

................ is used for hydrogen storage applications.

…………………. is used for extinguishing the fire caused by oil or petrol under the commercialname pyrene.

………………. is used for cleaning electronic equipments.

................ is used for bleaching clothes in laundry.

………………… is used by deep-sea divers.

….. is used as moderator in nuclear reactor.

________ is used as radiation windows for X-ray tubes

______ isusedasmildabrasivein toothpaste.

......... is used as fire extinguisher.

"_________________" is used as an oxidizing agent to bleach dark hair by a redox reaction.

…………………. is used as an antiseptic.

………………. is used as an anesthetic.

_______ isusedas asourceof oxygeninsubmarine, spaceshuttlesand inemergency breathing apparatus .

________ isusedas a reducingagentin theextractionof Band Si.

________ is used as a coolant in fast breeder nuclear reactor

___________ is unstable in air and is kept in CO_2 atmosphere to avoid decomposition.

............. is true relation for concentration. [A : Acidity]

............. is the type of matter based on physical state of matter.

..... is the relative proportion of tritium and protium ?

…. Is the name of C_(6)H_(4)Br_(2)

....... is the most safest pesticide.

.................. is the most abundant 90% of all atoms.

__________ is the main energy currency in hydrogen economy.

....... is the lowest layer of atmosphere.

__________ is the gas constant.

___________ is the cofactor of all enzymes that utilize ATP in phosphate transfer and energy release.

____ is strength in %W/V of 40 volume containing H_2O_2 solution.

...... is responsible for the deficiency of fluoride.

"………….." is producedby action of conc. H_(2)SO_(4) on potassium ferrocyanide.

_________ is present as an impurity in dihydrogen.

…….. is obtained during hydrolysis of SiCL_4

............ is not a unit of density.

Which of the following is not a colligative property ?

.......... is net state function.

How is bleaching powder prepared ?

_______ is named as bleaching powder.

........... is made up of same kind of atoms.

Which is known as a natural insulator?

.............. is known as Hydrogen sponge.

……………… is important in some vital biological systems.

....... is formed by attaching carbon monoxide with hemoglobin in blood.

.......... is extensive property.