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.

Name the process of removing dissolved substance from a colloidal solution by means of diffusion through a membrane.

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SOLUTION :DIALYSIS
2.

Name the process of removing an adsorbed substance from the surface on which it is absorbed.

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SOLUTION :DESORPTION
3.

Name the process involved in the extraction of copper from low grade ore.

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SOLUTION :HYDROMETALLURGY.
4.

Water acts as an acid in presence of :

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SOLUTION :QUICK Vinerar PROCESS.
5.

Name the process for the manufacture of ammonia from nitrogen and hydrogen.

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SOLUTION :Haber.s
6.

Name the process for isolation of metal from its ore.

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SOLUTION :METALLURGY
7.

Name the process by which sulphide ore is concentrated ?

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SOLUTION :ROASTING
8.

Name the process by which soaps are obtained by heating fat with aqueous sodium hydroxide solution.

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SOLUTION :SAPONIFICATION
9.

Name the principle involved in the desilverisation of lead by Parke's process.

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SOLUTION :NERNST DISTRIBUTION LAW or distribution law or PARTITION law.
10.

Name the polymers used in laminated sheets and give the name of monomeric units involved in its formation.

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SOLUTION :UREA -formaldehyde resin is USED for laminated sheets. Monomers are urea and formaldehyde.
11.

Name the polymers used in (l) bullet vests (ii) protective clothing for fire- fighters (iii) bulttet proof windows or crash helmets.

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Solution :(i) KEVLAR is a polymide obtained by condensation copolymerization of terephthalic acid and p-phenylenediamine (1,4-diaminobenzene).The fibres of this polymer are so strong that they are used to MAKE light weight bullet -proof vests.
(ii) NOMEX uis a polyamide made from m-phthalic acid and m-diaminobenzene. it is known for it is fire- resistant properties and is used in PROTECTIVE clothing for fire- fighters, astronauts ,and race - car drivers.
(iii) Lexan is a polycarbonate3 (or a polyester) and is obtained by condensation of diethyl carbonate and bisphenol-A. It has unsaually highe impact STRENGTH and is used for bullet -proof windows and safety or crash helmets.
12.

Name the polymer which is used for making electrical switches and combs.

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SOLUTION :BAKELITE.
13.

Name the polymer used in laminating sheets and give the name of monomeric units involved in its formation.

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Solution :Urea formaldehyde resin is used for LAMINATED SHEETS. The MONOMER of this resin is urea `(NH_(2)CONH_(2))` and formaldehyde `(HCHO)`.
14.

Name the polymer used for making contact lenses ?

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SOLUTION :POLY (METHYL methacrylate), PMMA.
15.

Name the polymer used for making non-stick cooking utensils.

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SOLUTION :TEFLON, `(-F_2 C - CF_2-)_n`
16.

Name the polymer that is used to manufacture conveyor belts, gaskets and hoses.

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SOLUTION :NEOPRENE
17.

Name the polymer obtained from HMDA and Adipic acid.

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Nylon-6
Nylon-6,6
Terylene
Malamine

Solution :Nylon-6,6
18.

Name the polymer obtained from the combination of monomers hexamethylene diamine and adipic acid.

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SOLUTION :NYLON 6,6
19.

Name the pigment responsible for photosynthesis.

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SOLUTION :CHLOROPHYLL
20.

Name the phenomenon of flow of solvent through the semi-permeable membrane.

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SOLUTION :OSMOSIS
21.

Name the phenomenon involved: A raw mango in a concentrated salt solution loses water and shrinks.

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SOLUTION :OSMOSIS process is involved when RAW mango in a CONCENTRATED SALT solution LOSES water and shrinks.
22.

Name the phenomenon/effect for the following : When an electrical potential is applied across two platinum electrodes dipping in colloidal solution, particles moves towards one or the other electrodes

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SOLUTION :ELECTROPHORESIS
23.

Name the phenomenon/effect for the following : Scattering of light by colloidal sol

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SOLUTION :TYNDALL EFFECT
24.

Name the phenomenon/effect for the following : Colloidal particles are in zig-zag motion

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SOLUTION :Brownian MOVEMENT
25.

Name the phenomenon/effect for the following i) Collidal particles are in zig zag motion. ii) When an electrical potential is applied across two platinum electrodes dipping in a collidal solution, particles move towards one or the other electrodes. iii) Scattering of light by collidal sol.

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SOLUTION :b) i) Brownian MOMENT..
ii) ELECTROPHORESIS.
III) Tyndal effect.
26.

Name the phenomenon behind this.

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ANSWER :`FE(H)_3` sol gets COAGULATED or precipitated on adding `BaCl_2` solution.
27.

Name the phenol with molecular formula C_(7)H_(8)O which on treatment with Br_(2) water readily gives a precipitate of C_(7)H_(5)OB r_(3).

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SOLUTION :m-Cresol forms a TRIBROMO DERIVATIVE because it has two o- and one p-position free w.r.t. OH GROUP.
28.

Name the person with whom would you associate the following slogans? a. Aya Ram and Gaya Ram______________ ltBrgt b. Total revolution____________

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Solution :AYA Ram Gaya Ram----Gaya LAL
Total Revolution------JAI PRAKASH Narayan
29.

Name the pentose sugar present in RNA molecule.

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SOLUTION :`beta-D-` RIBOSE.
30.

Name the oxometal anions of the first seris of the transitoin metals in which the metal exihibits the oxidation state equal to its group number.

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SOLUTION :`Cr_(2)O_(7)^(2-) ` and `CrO_(4)^(2-)` ( GROUP No.`=` Oxidation STATE of `Cr = 6) , MnO_(4)^(-) ` ( Group No `=` Oxidation state of `MN= 7)`
31.

Name the parameters that characterise a unit cell.

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Solution :The length of the EDGES or edge LENGTHS a, b, and C
The angles between the PAIR of edges, `alpha, BETA` and `gamma.`
32.

Name the oxometal anions of the first series of transition metals in which metal exhibits oxidation state equal to its group number.

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Solution :(1) Dichromate ION `(Cr_(2)O_(7)^(2-))`O.S. = + 6 Group no. = VIA
PERMANGANATE ion (`MnO_(4)^(-)`) O.S. = + 7 Group no. = VII A
33.

Name the oxometal anions of the first series of the transition metals in which the metal exhibits the oxidation state equal to its group number.

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SOLUTION :`Cr_(2)O_(7)^(2-)` and `CrO_(4)^(2-)` (Group NUMBER = Oxidation state of Cr = 6)
`MnO_(4)^(-)` (Group = Oxidation state of Mn = 7)
34.

Name the oxides of nitrogen causing pollution .

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SOLUTION :
35.

Name the oxides of chlorine used to bleach paper pulp.

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SOLUTION :`ClO_2`and `Cl_2O`are USED to BLEACH PAPER PULP.
36.

Name the organic compound obtained when aniline is added to dilute HCI at 0^(@)C . Give the equation for the reaction .

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SOLUTION :BENZENE DIAZONIUM CHLORIDE
37.

Name the organic compound formed when chlorobenzene is treated with sodium in dry ether.

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SOLUTION :DIPHENYL
38.

Name the ore that can be concentrated by magnetic separation method.

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Solution :Magnetite `(Fe_(3)O_(4))`, Haematite `(Fe_(2)O_(3))` are the ORES which can be separated by the MAGNETIC separation method. In these ores, one component is magnetic in NATURE.
39.

Name the only primary alcohol which gives positive iodoform test.

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SOLUTION :ETHANOL .
40.

Name the only heterocyclic nitrogen base, which is present in DNA but not is RNA.

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Solution :The heterocyclic nitrogen BASE, thymine (T) is not present in RNA.
41.

Name the only primary alcohol which gives iodoform test.

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SOLUTION :ETHANOL.
42.

Name the noble gas which is obtained from ._(86)^(226)Ra. Write its main use. Or Name the noble gas used in radiotherapy.

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Solution :DECAY of `._(86)^(226)Ra` GIVES the noble gas radon (Rn) with release of an `alpha`-particle, i.e., `._(2)^(4)He`.
`._(86)^(226)Ra RARR ._(86)^(226)Rn + ._(2)^(4)He`
It is used in treatment of CANCER and athritis.
43.

Name the noble gas used in Magnetic Resonance Imaging (MRI) Systems.

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Solution :He is USED in MAGNETIC Resonance Imaging (MRI) SYSTEMS.
44.

Name the noble gas that is radioactive?

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SOLUTION :RADON or RN.
45.

Name the nobles gas obtaind as decay product of ""_226Ra.

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SOLUTION :RADON or RN
46.

Name the noble gas having ns^(2)np^(6) electronic configuration but does not have d-orbitals in its valence shell.

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SOLUTION :NEON or NE.
47.

Name the nitrogen base present only in DNA not in RNA.

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SOLUTION :The NITROGEN base PRESENT in DNA not in RNA is Thymine
48.

Name the nitrogenous base present in DNA but not in RNA.

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Solution :THYMINE is the nitrogenous BASE PRESENT in DNA but not in RNA.
49.

Name the most important form of iron. Mention its one use.

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ANSWER :Cast iron is used for making gutter pipes, CASTINGS, railway SLEEPERS, toys ETC.
50.

Name the most electronegative element in the periodic table.

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SOLUTION :FLUORINE (F).