Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

Give one most important application of the phenomenon of depression in freezing point in everyday life.

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SOLUTION :In LOWERING the freezing point of water in the CAR radiator by adding SUITABLE solutes (ethylene GLYCOL) to run it in sub-zero weather.
Discussion
2.

Give one method of preparation of sodium thiosulfate.

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Solution :`Na_(2)SO_(3) + S overset(DELTA) RARR Na_2 S_2O_3`
Discussion
3.

Give one important use of each of the following : Morphine

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SOLUTION :NARCOTIC ANALGESICS
Discussion
4.

Give one important use of each of the following in Pharmacy ? (i) Equanil (ii) Morphine.

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Solution :(i)EQUANIL is a tranquilliser. It is used for REMOVING depressionand hypertension(ii) Morphine is an alkaloid. It is used as an ANALGESIC
Discussion
5.

Give one important use of each of the following : (i) Bithional(ii) Chloromphenicol (iii) Streptomycin(iv) Paracetamol.

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Solution :(i) Bithional is an antiseptic and is added to medicated SOAPS to reduce the odour produced by bacterial decomposition of organic matter on the skin.
(ii) Chloromphenicol is BROAD spectrum antibiotic and can be used for CURRING typhoid, acute fever, dysentary, whooping cough, pneumonia, CERTAIN urine infections etc.
(iii) Streptomycin is an antibiotic used for the treatment of tuberculosis , meningitis, pneumonia, local infection etc.
(iv) Paracetamol is used to lower the temperature of the body in HIGH fever and an analgasic to relieve pain.
Discussion
6.

Give one important use of each of the following : (i) Bithional (ii) Chloramphenicol (iii) Streptomycin (iv) Paracetamol

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Solution :(i) Bithional is added to soaps so as to IMPART antiseptic properties.
(ii) CHLORAMPHENICOL is broad SPECTRUM antibiotic used for curing typhoid, meningitis, dysentery, etc.
(iii) Streptomycin is used for treatment of T.B. (Tuberculosis).
(iv) Paracetamol is ANTIPYRETIC and is used in bringing down temperature of feveral body.
Discussion
7.

Give one important use of each of the following: (i) Bithional (ii) Chloramphenicol (iii) Streptomycin (iv) Paracetamol

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Solution :(i) Bithional is added to soap so as to impart antiseptic properties to the soap.
(ii) CHLORAMPHENICOL is a BROAD spectrum antibiotic used in curing typhoid, meningitis.
(iii) Streptomycin is used for the treatment of T.B (Tuberculosis).
(iv) Paracetamol is an ANTIPYRETIC used in bringing down temperature in high FEVER.
Discussion
8.

Give one important use of each of the following : Equanil

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SOLUTION :TRANQUILIZER (ANTIDEPRESSANT).
Discussion
9.

Give one example where hydrometallurgy is used for metal extraction?

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SOLUTION :EXTRACTION.
Discussion
10.

Give one example (with equation) wurtz-fittig reaction.

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Solution :Wurtz-Fittig reaction involved the reaction between an aryl halide and an alkyl halide in PRESENCE of metallic sodium in dry ether to yield alkyl substituted benzene. For example.
`underset("Chlorobenzene")(C_(6)H_(5)-CL)+2Na+underset("Methyl chloride")(Cl-CH_(3)) underset("Wurtz-fittig reaction")overset("Dry ether, "Delta)to underset("Toluene")(C_(6)H_(5)-CH_(3))+2NaCl`
Discussion
11.

Give one important ore of aluminium.

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SOLUTION :BAUXITE `(Al_(2)O_(3).2H_(2)O)`.
Discussion
12.

Give one example of unimolecular reaction.

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SOLUTION :`C_4H_9OHrarrC_4H_8+OH`
Discussion
13.

Give one example of pseudo first order reaction

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SOLUTION :HYDROLYSIS of an ESTER or any other CORRECT EXAMPLE.
Discussion
14.

Give one example of lyophilic sol.

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SOLUTION :COLLOIDAL SOL of STARCH.
Discussion
15.

Give one example of each : (a) Solution in which the solute is a gas and solvent is a liquid. (b) Solution in which the solute is a liquid and solvent is a solid.

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SOLUTION :(a) OXYGEN dissolved in water. (b) AMALGAM of MERCURY in sodium.
Discussion
16.

Give one example of each : (a) Neutral ligand of carbon (b) Positive ligand of nitrogen.

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SOLUTION :(a) `CH_(3)`-(methyl) (b) `NO^(+)` (nitrosonium) or `NO_(2)^(+)` (nitronium).
Discussion
17.

Give one example of condensation polymer.

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SOLUTION :Nylon-6, 6.
Discussion
18.

Give one example of compolymer.

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SOLUTION :BAKELITE
Discussion
19.

Give one example of chelate complex.

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SOLUTION :
Discussion
20.

Give one example of bimolecular reaction.

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SOLUTION :`H_2+I_2harr2HI`
Discussion
21.

Give one example of associated coloids.

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Discussion
22.

Give one example of an oxide which is ferromagnetic. Give its one important use.

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Solution :`CrO_(2)` is ferromagnetic. It is used to MAKE MAGNETIC tapes for cassette recorders.
Discussion
23.

Give one example of an ether which cannot be decomposed by HI.

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SOLUTION :Diphenylether, `C_6H_5 - O - C_6H_5`cannot be DECOMPOSED by HI. IODIDE cannot attack the RING CARBON as nucleophile.
Discussion
24.

Give one example of an interstitial solid.

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Solution :Tungsten CARBIDE (WC) in which tungsten (W) atoms are arranged in a face-centred cubic lattice and C-atoms OCCUPY the octahedral VOIDS (INTERSTITIAL sites).
Discussion
25.

Give one example of aerosol and ge.

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Discussion
26.

Give one example of an artificial sweetener used by diabetic patients.

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SOLUTION :Saccharin (in form of its sodium SALT) is taken as artificial sweetener by diabetic PATIENTS
Discussion
27.

Give one example of : (a) water soluble, (b) fat soluble vitamins.

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SOLUTION :(a) VITAMIN C(B) Vitamin D
Discussion
28.

Give one example of a zwitterion.

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SOLUTION :Sulfanillic ACID,
Discussion
29.

Give one example of a reaction where order and molecularity are equal ?

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SOLUTION :`2HI to H_2 + I_2` (ORDER = MOLECULARITY =2 )
Discussion
30.

Give one example of a (i)bactericidal antibiotic (ii) bacteriostatic antibiotic.

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SOLUTION :(i) PENICILLIN (II) TETRACYCLINE.
Discussion
31.

Give one example of a fractional order reactions:

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Solution :`H_(2)+Br_(2)to 2HBR`,Rate =`K[H_(2)][Br_(2)]^(1//2),` order = `11/2`
Discussion
32.

Give one example of a disaccharide.

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SOLUTION :SUCROSE
Discussion
33.

Give one example of a chemical reaction involving homogeneous catalyst.

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SOLUTION :`2SO_2(G) + O_2(g) OVERSET(NO(g))to 2SO_3(g)`
Discussion
34.

Give one example of a bidentate ligand.

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Solution :ETHYLENE diamine, `underset(CH_(2)NH_(2))underset("|")(CH_(2)NH_(2))` (en).
Discussion
35.

Give one example for the above crystal system.

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SOLUTION :NACL (ROCKSALT), DIAMOND
Discussion
36.

Give one example for (i)Acidic flux (ii)basic flux

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Solution :(i)ACIDIC flux :`SiO_(2)`
(ii)Basic flux :`CaCO_(3),MgCO_(3)`
Discussion
37.

Give one example for non-ideal solution showing positive deviation and non-ideal solution showing negative deviation.

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Solution :For positive DEVIATION any one example.
Eg : water + ETHANOL, water + methanol, ethanol + acetone, benzene + acetone, CARBON tetrachloride + Chloroform, ethanol + cyclohexane, acetone + Carbon disulphide.
For negative deviation any one example
Eg : HCI + water, HNO3 + water, Hz504 + water, chloroform + acetone, chloroform + benzen.e, acetone + aniline, Chloroform + diethylether, aceti.c add + pyridine.
Discussion
38.

Give one example for each of the following with their structure and IUPAC name. (i) 1^@ alcohol(ii) 2^@ alcohol(iii) 3^@ alcohol

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SOLUTION :(i) `CH_3-underset(H)underset(|)overset(H)overset(|)C - OH` : ETHANOL (`1^@` alcohol)
(ii) `CH_3-underset(H)underset(|)overset(CH_3)overset(|)C-OH` : propan - 2 - ol (`2^@` alcohol)
(iii) `CH_3 - underset(CH_3)underset(|)overset(CH_3)overset(|)C -OH` : 2- methyl - propan - 2 - ol (`3^@` alcohol)
Discussion
39.

Give one example for each of the following: (i) icosogens (ii) tetragen (iii) prictogen (iv) chalcogen

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Solution :(i) Icosoens: (a) Boron, (b) Aluminium (C) GALLIUM
(i) Tetragen: (a) Carbon (b) Silicon, (c) Gemanium
(III) Prictogen: (a) Oxygen, (b) sulfru, (c) Selenium
(iv) Chalcogen (a) FLUORINE, (b) Chlorine, (c) Bromine
Discussion
40.

Give one example for each of the following : (i) An artificial sweetener whose use is limited to cold drinks , (ii) A non-ionic detergent,(iii)A pain reliever for relief from severe post-operative pain or pain due to terminal cancer.

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Solution :(i)Since aspartame decomposes at baking or cooking temperature, therefore , it is used as an artificial sweetener in cold drinks.
(ii)ESTER of stearic acid with polyethylene glycol `underset"Polyethylene glycol"(HO(CH_2CH_2O)_nCH_2CH_2OH)+ underset"Stearic acid "(CH_3(CH_2)_16COOH) underset(-H_2O)to underset"Polyethylene glycol STEARATE (A non-ionic detergent)"(CH_3(CH_2)_16COO(CH_2CH_2O)_nCH_2CH_2OH)`
(iii)The alkaloid MORPHINE is used for relief from SEVERE pain
Discussion
41.

Give one example for each of the following (i) icosogens(ii) tetragen (iii) pnictogen(iv) chalcogen

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SOLUTION :(i) icosogens-Boron
(II) tetragen-Carbon
(III) pnictogen-Nitrogen
(IV)chalcogen-Oxygen
Discussion
42.

Give one example for each of the following : (a) An artificial sweetner whose use is limited to cold drinks. (b) A non ionic detergent. (c) A pain reliever used for relief from severe pain like post-operative pain or pain due to terminal cancer.

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Solution :(a) Aspartame is used as artificial sweetener whose use is LIMITED to cold drinks. Its sweetening capacity is destroyed on heating.
(b) Ester of stearic ACID and polyethylene GLYCOL is an example of a non-ionic detergent. Its formula is
`CH_(3)(CH_(2))_(16)COO(CH_(2)CH_(2)O)nCH_(2)CH_(2)OH `
(c) Morphine is used as a pain reliever for relief from SEVERE pain like post-operative pain or pain due to TERMINAL cancer.
Discussion
43.

Give one example each when Van't Hoff factor is 2 and 1/2.

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SOLUTION :`i=2(KCI), i=1/2 (C_(6)H_(5)COOH)`
Discussion
44.

Give one example for detergent with straight chain hydrocarbon

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SOLUTION :SODIUM dodecyl BENZENE sulphonate
Discussion
45.

Give one example each of water in oil and oil in water type emulsion.

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SOLUTION : WATER in OIL : BUTTER
Oil in water : MILK
Discussion
46.

Give one example each of solid in gas and liquid in gas solutions.

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SOLUTION :IODINE VAPOUR in AIR, HUMIDITY in air.
Discussion
47.

Give one example each of positive and negative sol.

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Solution :POSITIVE sol : `FE(OH)_3`, NEGATIVE sol : `As_2S_3` .
Discussion
48.

Give one example each of sol and gel.

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SOLUTION :SOL: Paint/Cell fluids.
GEL : Cheese/butter/jellies (as any other any one EXAMPLE of each).
Discussion
49.

Give one example each of 'oil in water' and 'water in oil' emulsion.

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SOLUTION :OIL in WATER emulsion-Milk, Water in oil emulsion-Butter.
Discussion
50.

Give one example each of hydrogen bonded molecular solid and network solid . Comment on their melting points .

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SOLUTION :
Discussion