94420 + Interview Questions in Chemistry in Class 12 Page 1875 InterviewSolution

93701.	{:("LIST - 1","LIST - 2"),("A) Electronic conductor","1) Aqueous urea solution"),("B) Non-electrolyte ","2) Solid sodium"),("C) Electrolytic dissociation","3) Electrolytic conductor"),("D) Arrhenius ","4)Radioactivity increases"),(,"5) Conductivity raises with temperature"):} The correct match is
Answer» `{:(A,B,C,D),(5,1,2,3):}` `{:(A,B,C,D),(5,2,1,4):}` `{:(A,B,C,D),(2,1,5,3):}` `{:(A,B,C,D),(2,5,1,4):}`

Discussion

93702.	{:("LIST - 1","LIST - 2 "),("A) One faraday","1) Reduction"),("B) Anode","2) 96500 coulomb"),("C) Cathode","3)" 6.24xx10^(18) " electrons"),("D) One coulomb","4) Oxidation"),(,"5) "Z xx "96,500"):} The correct match is
Answer» `{:("A","B","C","D"),(5,4,2,3):}` `{:("A","B","C","D"),(2,4,1,3):}` `{:("A","B","C","D"),(2,4,1,5):}` `{:("A","B","C","D"),(5,2,1,3):}`

Discussion

93703.	……………. Linkages are present in carbohydrates .
Answer» SOLUTION :GLYCOSIDIC LINKAGES are PRESENT in CARBOHYDRATES.

Discussion

93704.	(-)-Lactic acid (0.5mol) is mixed with (+)- lactic acid (1 mol). Predict whether the mixture will be optically active or not.
Answer» SOLUTION :REMAINS OPTICALLY ACTIVE

Discussion

93705.	_______is widely used to prevent heart attacks
Answer» ANSWER :ASPIRIN

Discussion

93706.	_________ is used to remove rust marks because it reacts with the __________ ion present in the rust and forms a soluble complex in water.
Answer» SOLUTION :OXALIC ACID, `FE^(3+)`

Discussion

93707.	………………………IS used to prepare a secondary alcohol with identical group.
Answer» SOLUTION :FORMATE ESTER

Discussion

93708.	........... is used to decolourising agent in manufacture of sugar from molasses.
Answer» SOLUTION :ANIMAL CHARCOAL

Discussion

93709.	________ is used to denature ethanol.
Answer» METHANOL PROPANOL Acetic ACID ACETALDEHYDE ANSWER :A

Discussion

93710.	........... is used to create high vaccum in vessels.
Answer» SOLUTION :ACTIVATED CHARCOAL

Discussion

93711.	........ is used only for cold foods and soft drinks.
Answer» Saccharin ASPARTAME Sucrolose Alitame SOLUTION :Aspartame

Discussion

93712.	............... is used to convert acetic acid to ethane at 473 K.
Answer» <P> SOLUTION :HI + RED P

Discussion

93713.	______ is used in the treatment of lead poisoning.
Answer» ANSWER :EDTA

Discussion

93714.	............... is used in the preparation of artificial fruit essences.
Answer» SOLUTION :ETHYL ACETATE

Discussion

93715.	__________ is used in the manufacture of thermo softening plastic perspex.
Answer» acetaldehyde acetone acetophenone benzophenone Answer :B

Discussion

93716.	................. is used in the detection and estimation of -OH, -NH_2 , groups in organic compounds.
Answer» SOLUTION :ACETYL CHLORIDE

Discussion

93717.	............. is used in perfumery and as a hypnotic under the name hyphone
Answer» SOLUTION :ACETOPHENONE

Discussion

93718.	…….. is used in leather tanneries for chrome tanning.
Answer» SOLUTION :POTASSIUM DICHROMATE

Discussion

93719.	___________ is used in dry cell.
Answer» CU ZN Fe Al Solution :Zn is ANODE

Discussion

93720.	__________ is used in estimation of iodine number of fats and oils .
Answer» `I_2` ICI `ICI_3` `IF_7` ANSWER :B

Discussion

93721.	………………….. Is used for water proofing and textiles.
Answer» ANSWER :POTASH ALUM

Discussion

93722.	………… is used for the manufacture of petrol by cracking the mineral oils.
Answer» ANSWER :`AlCl_(3)`

Discussion

93723.	_______ is used for the treatment of gout
Answer» FORMIC acid Acetic acid Acetylchloride Acetic anhydride Answer :A

Discussion

93724.	………………………… is used for the identification of coloured metal ions.
Answer» ANSWER :BORAX

Discussion

93725.	........ is used for the treatment of skin infections and fungal infections of the foot.
Answer» SOLUTION : POTASSIUM PERMANGANATE

Discussion

93726.	……….. Is used for increasing the efficiency of solar cells and also used as catalysts.
Answer» SOLUTION :GOLD NANOPARTICLE

Discussion

93727.	________ is used as the starting material for the preparation of iodoform .
Answer» METHYL ALCOHOL ETHYL alcohol n-Propyl alcohol n-Butyl alcohol ANSWER :B

Discussion

93728.	………………… is used as refrigerant.
Answer» SOLUTION :DIETHYL ETHER

Discussion

93729.	................. is used as food preservative
Answer» SOLUTION :SODIUM BENZOATE

Discussion

93730.	____________ is used as cryogenic agent for carrying out various experiments at low temeperatures.
Answer» LIQUID xenon Liquid argon Liquid helium Liquid krypton Answer :C

Discussion

93731.	_________ is used as an ingredient in mouth washes.
Answer» METHANOL Ethanol Propanol BUTANOL ANSWER :B

Discussion

93732.	__________ is usedas an anti-freeze in automobiles .
Answer» ETHANOL PROPANOL Methanol Benzyl ALCOHOL ANSWER :C

Discussion

93733.	…………………. is used as an anti-freezer in automobile radiators.
Answer» SOLUTION :ETHYLENE GLYCOL

Discussion

93734.	.......... is used as adsorbent in froth floatation method ?
Answer» SILICON gel Charcoal TURPENTINE Alumina SOLUTION :Turpentine

Discussion

93735.	………………….is used as a surgical anesthetic agent in surgery.
Answer» SOLUTION :DIETHYL ETHER

Discussion

93736.	………………… is used as a sweetening agent in contfectionery and beverages.
Answer» SOLUTION :GLYCEROL

Discussion

93737.	................... is used as a substitute of wool for making blankets, sweaters .
Answer» SOLUTION :ORLON ( or ) PAN

Discussion

93738.	……………………..is used as a substitute for petrol under the name …………………. and used as fuel for aeroplane.
Answer» SOLUTION :ETHANOL, POWER ALCOHOL

Discussion

93739.	…………………….. Is used as a rocket fuel igniter.
Answer» ANSWER :AMORPHOUS BORON

Discussion

93740.	__________ is the study of chemical reactions with respect to reaction rates, effects of various variables, etc.
Answer» SOLUTION :CHEMICAL KINETICS

Discussion

93741.	_________ is the reciprocal of resistance.
Answer» SPECIFIC conductance molar conductance specific resistance conductance Answer :D

Discussion

93742.	……………… is the most stable alotropic form of carbon at normal temperature and pressure.
Answer» ANSWER :GRAPHITE

Discussion

93743.	………………….. is the most powerful tool for the determinaiton of crystal structure.
Answer» SOLUTION :X - RAY DIFFRACTION ANALYSIS

Discussion

93744.	………………. Is the general electronic configuration of tetragen elements.
Answer» ANSWER :`NS^(2)NP^(2)`

Discussion

93745.	_________ is the element of the first transition series that exhibit the highest number of oxidation states.
Answer» SOLUTION :MANGANESE

Discussion

93746.	……… is the compound which can remove both oxygen and nitrogen of the air when it as passed over it at 1000ᵒC:
Answer» `CaC_2` `CaCl_2` `CaCN_2` `CA(CN_2)` ANSWER :A

Discussion

93747.	......... is the compound which can remove both nitrogen and oxygen of the air when it is passed over it at 1000^@C:
Answer» `CaC_2 & C ` `CaCl_2` `CaCN_2` `CA(CN)_2` SOLUTION :`CaC_2 + N_2 OVERSET(DELTA)to CaCN_2+ C_("(graphite)"), C + O_2 to CO_2`

Discussion

93748.	_______ is the branch of chemistry which deals with the treatment of diseases using chemicals
Answer» ANSWER :CHEMOTHERAPY

Discussion

93749.	…………………… is the best reagent to prepare unsaturated alcohol by reduction reaction of carbonyl compound.
Answer» SOLUTION :`LiAlH_4`

Discussion

93750.	…… is the best conductor of electricity among coinage metals:
Answer» Ag Cu Au All Answer :A

Discussion

Explore topic-wise InterviewSolutions in .

{:("LIST - 1","LIST - 2"),("A) Electronic conductor","1) Aqueous urea solution"),("B) Non-electrolyte ","2) Solid sodium"),("C) Electrolytic dissociation","3) Electrolytic conductor"),("D) Arrhenius ","4)Radioactivity increases"),(,"5) Conductivity raises with temperature"):} The correct match is

{:("LIST - 1","LIST - 2 "),("A) One faraday","1) Reduction"),("B) Anode","2) 96500 coulomb"),("C) Cathode","3)" 6.24xx10^(18) " electrons"),("D) One coulomb","4) Oxidation"),(,"5) "Z xx "96,500"):} The correct match is

……………. Linkages are present in carbohydrates .

(-)-Lactic acid (0.5mol) is mixed with (+)- lactic acid (1 mol). Predict whether the mixture will be optically active or not.

_______is widely used to prevent heart attacks

_________ is used to remove rust marks because it reacts with the __________ ion present in the rust and forms a soluble complex in water.

………………………IS used to prepare a secondary alcohol with identical group.

........... is used to decolourising agent in manufacture of sugar from molasses.

________ is used to denature ethanol.

........... is used to create high vaccum in vessels.

........ is used only for cold foods and soft drinks.

............... is used to convert acetic acid to ethane at 473 K.

______ is used in the treatment of lead poisoning.

............... is used in the preparation of artificial fruit essences.

__________ is used in the manufacture of thermo softening plastic perspex.

................. is used in the detection and estimation of -OH, -NH_2 , groups in organic compounds.

............. is used in perfumery and as a hypnotic under the name hyphone

…….. is used in leather tanneries for chrome tanning.

___________ is used in dry cell.

__________ is used in estimation of iodine number of fats and oils .

………………….. Is used for water proofing and textiles.

………… is used for the manufacture of petrol by cracking the mineral oils.

_______ is used for the treatment of gout

………………………… is used for the identification of coloured metal ions.

........ is used for the treatment of skin infections and fungal infections of the foot.

……….. Is used for increasing the efficiency of solar cells and also used as catalysts.

________ is used as the starting material for the preparation of iodoform .

………………… is used as refrigerant.

................. is used as food preservative

____________ is used as cryogenic agent for carrying out various experiments at low temeperatures.

_________ is used as an ingredient in mouth washes.

__________ is usedas an anti-freeze in automobiles .

…………………. is used as an anti-freezer in automobile radiators.

.......... is used as adsorbent in froth floatation method ?

………………….is used as a surgical anesthetic agent in surgery.

………………… is used as a sweetening agent in contfectionery and beverages.

................... is used as a substitute of wool for making blankets, sweaters .

……………………..is used as a substitute for petrol under the name …………………. and used as fuel for aeroplane.

…………………….. Is used as a rocket fuel igniter.

__________ is the study of chemical reactions with respect to reaction rates, effects of various variables, etc.

_________ is the reciprocal of resistance.

……………… is the most stable alotropic form of carbon at normal temperature and pressure.

………………….. is the most powerful tool for the determinaiton of crystal structure.

………………. Is the general electronic configuration of tetragen elements.

_________ is the element of the first transition series that exhibit the highest number of oxidation states.

……… is the compound which can remove both oxygen and nitrogen of the air when it as passed over it at 1000ᵒC:

......... is the compound which can remove both nitrogen and oxygen of the air when it is passed over it at 1000^@C:

_______ is the branch of chemistry which deals with the treatment of diseases using chemicals

…………………… is the best reagent to prepare unsaturated alcohol by reduction reaction of carbonyl compound.

…… is the best conductor of electricity among coinage metals:

_ is used to remove rust marks because it reacts with the __ ion present in the rust and forms a soluble complex in water.