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. |
Cortisone contains which functional groups? |
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Answer» ETHER, ALKENE,alcohol
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| 2. |
Correctly matched option stability of compound in each of the following pairs : |
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Answer»
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| 3. |
Correct the following electronic configurations of the elements in the ground state : (i) 1s^(2) 2s^(1) 2p_(x)^(2) 2p_(y)^(2) 2p_(z)^(2) 3s^(2) 3p_(x)^(1)(ii) 1s^(2) 2s^(1) 2p_(y)^(2) 2p_(y)^(2)2p_(z)^(1) (iii) 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 3d^(5) (iv) 1s^(2)2s^(2) 2p^(6) 3s^(2) 3p^(6) 3d^(4) 4s^(2) |
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Answer» Solution :(i) `1s^(2) 2s^(2) 2p_(x)^(2) 2p_(y)^(2) 3S^(2)` (ii) `1s^(2) 2s^(2) 2p_(x)^(1) 2p_(y)^(1) 2p_(z)^(1)` (III) `1s^(2) 2s^(2) 2p^(6) 3s^(2) 3P^(6) 4s^(2) 3d^(3)` (iv) `1s^(2) 2s^(2) 2p^(6) 3s^(2)3p^(6) 3d^(5) 4s^(1)` |
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| 4. |
Correct statements (s) about is /are |
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Answer» liberate `3/2` MOLE of `H_(2)` on TREATEMENT with Na. |
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| 5. |
Correct statements (s) about is /are |
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Answer» It gives coloured SOLUTION with neutral `FeCl_(3)` solution |
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| 6. |
Correct statements regarding silicones are a)They are used in the preparation of water proof clothes. b) They are organo silicon compounds. c) They are used in the preparation of grease and lubricants. d)They are used in paints and enamels. |
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Answer» a, B, C only |
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| 7. |
Correct statements regarding diagnal relationship between belyllium and aluminium are A) Both BeCl_(2) and AlCl_(3) are strong Lewis acids B) Both Be(OH)_(2) and Al(OH)_(3) are dissolve in excess alkali to give beryllate ion and aluminate ion respectively C) Charge/radius ratio of Bc^(2+) and A^(2+) ions is similar D) Both BeCl_(2) and AlCl_(3) are insoluble in organic solvents |
| Answer» Answer :B | |
| 8. |
Correct statements of the following are Fluorides can be detected by zirconium - alizarin S - dye Harmless level of fluorides in water is upto 10ppm In Nalgonda technique bleaching powder, lime and alum are added in the same order Less than 3ppm of fluoride concentration can caui1e fluorosis |
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Answer» A and C |
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| 9. |
Correct statement(s) is/are reagarding following compounds : |
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Answer» All are geometrical ISOMER of each other. |
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| 10. |
Which of the following statements concerning elements with atomic number 10 is true? |
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Answer» forms a covalent NETWORK solid |
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| 11. |
Correct statements among (a) to (d) regarding silicones are.... (a) They are polymers with hydrophobic character. (b) They are biocompatible. (c) In general, they have high thermal stability and low dielectric strength. (d) Usually, they are resistant to oxidation and used as greases. |
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Answer» (a),(b) and (d) only |
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| 12. |
Correct statements among the following are |
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Answer» The net change in ENTROPY of SYSTEM is zero in any cyclic process |
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| 13. |
Correct statements about this reaction |
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Answer» The correct order of RATE of reaction `C_(6)H_(6) gt C_(6)D_(6) gt C_(6)T_(6)` |
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| 14. |
Correct statement(s) about molecular velocities is/are |
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Answer» With increase in the TEMPERATURE fraction of molecules with most PROBABLE velocity decreases. B) as `T uarr, u_(rms) uarr`. c, d) `C_p < barC < C implies ` fraction of `C_P > barC > C`. |
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| 15. |
Assertion(A ): Absolute values of internal energy cannot be determined Reason (R ): It is impossible to determine the exact values of constituent energies of the substances |
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Answer» A,B and C |
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| 16. |
Correct statement/s/is /are |
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Answer» The crystal structure is observed by associating with each lattice point as identical structral moety. |
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| 17. |
Correct statement (s) about the above experiment is/are: |
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Answer» Y' may be due to `[Fe_(3)(OH)_(2)(CH_(3)COO)_(6)]^(+)` |
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| 18. |
Correct statement regarding the electrophilic substitution of C_(6)H_(6) |
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Answer» It involves two TRANSITION state |
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| 19. |
Correct statement regarding industrial waste |
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Answer» It is bio degradable |
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| 20. |
Correct statement regarding compound (X): |
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Answer» CONTAINING five gemoetrial isomers out which one is an enantiomeric PAIR |
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| 21. |
Correct statement of the following is |
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Answer» solubility of `NACL` increass with INCREASE in temperature |
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| 22. |
Correct Statement is/are |
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Answer» Individual crystals with their ORDERED ATOMIC lattices exist but are so small as to be unrecognizable except under a microscope is said to be polycrystalline . |
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| 23. |
Correct statement is |
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Answer» `K=4s^1 , Cr=3d^4 4s^2 , Cu=3d^10 4s^2` |
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| 24. |
Correct statement among the following regarding osmoles is |
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Answer» SOLVENT FLOWS from high concentration of solute to LOW concentration of solute |
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| 25. |
Correct statement among the following is : |
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Answer» X and Y are same
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| 26. |
Correct statement among the following is |
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Answer» Oxide of hydrogen is basic |
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| 27. |
Correct statement about truxilic acid is/are : |
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Answer» Ithas four CHIRAL centre si truxilic ACID, no stereoisomer out of S is optically actives so it does not show optical isomerism. |
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| 28. |
Correct statement about this reaction is/are |
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Answer» The reaction is completely reversible |
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| 29. |
Correct statement about following compound is/are : |
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Answer» It can show GEOMETRICAL isomerism |
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| 30. |
Correct statement about ethene is |
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Answer» `angle(HC C)` is greater than `109.5^(@s)` |
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| 31. |
Correct statement about D-monnitol (in given from): |
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Answer» `C_(3)` axis of SYMMETRY
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| 32. |
Correct statement about 'B' is/are: |
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Answer» GREEN edged flame occurs due to formation methyl borate |
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| 33. |
Correct statement about Al(BH_(4))_(3) is : |
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Answer» Each `BH_(4)` UNIT forms TWO hydrogen bridges |
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| 34. |
Correct set of four quantum numbers for the valence electron of Rubidium (Z=37) is |
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Answer» `5, 0, 0, +1//2` |
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| 35. |
Correct R.S configuration of following compunds is : |
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Answer» R at A and R at B<BR>R at A and S at B
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| 36. |
Correct representation of 3-methylpent-3-en-2-ol is |
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Answer»
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| 37. |
Correct representation of meta-aluminate ion is |
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Answer» `[Al(OH)_(2)(H_(2)O)_(4)]^(-)` |
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| 38. |
Correct relation among X_A, X_B, and Delta, where X_A, and X_B are the electronegativities of elements A and B. |
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Answer» `X_A + X_B = 0.208 SQRT(DELTA)` |
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| 39. |
Correct pair of compounds which gives blue colouration/precipitate and white precipitate, respectively, when their Lassaigne's test is separately done is |
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Answer» `NH_(2)NH_(2).HCl` and `ClCH_(2)COOH` |
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| 40. |
Correctorder of theionizationenergyof C, N, O, F is |
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Answer» `F lt N ltlt C lt O ` `C ltO lt N lt F` i.e.,option( c) is correct |
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| 41. |
Correct order of tendency to loss of electrons |
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Answer» ` Zn gt Cu gt AG ` |
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| 42. |
Write the preferential order in naming polyfunctional compounds. |
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Answer» `-COOH GT - COOR gt CN gt -OH gt "ALKENE" gt -SO_3H` |
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| 43. |
Correct order of polyfunctional groups |
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Answer» `-COOH gt - COOR gt - CN gt - OH gt " Alkene " gt - SO_(3)H` |
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| 44. |
Correct order of hydration enthalpies |
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Answer» `LI^(+) GT Na^(+) gt Be^(2+) gt Mg^(2+)` |
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| 45. |
Correct order of first ionisation potentials |
| Answer» Answer :A | |
| 46. |
Correct order of E_2//S_N2 ratio is : |
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Answer» <P>P gt Q gt S gt R |
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| 47. |
Correct order of boiling points of hydrogen halides is |
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Answer» `(CH_(3))_(3)N lt (CH_(3))_(3)P lt (CH_(3))_(3)As lt (CH_(3))_(3)Sb ` |
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| 48. |
Correct order of atomic radii |
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Answer» <P>`N LT C lt P lt S` |
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| 49. |
Correct order of acidic strength in Cortisone : |
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Answer» `a GT B gt CGT d`
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