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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. |
Number of total possible structural isomers of dichloro ethane |
Answer» 
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| 2. |
Number of the lone pairs associated with xenon in xenon hexafluroide are: |
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Answer» 1 |
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| 3. |
Number of tertiary amines possible fo C_(6)H_(5)N (excluding stereoisomers) is |
Answer» 
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| 4. |
Number of tetrahedral voids in the fcc unit cell is : |
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Answer» 8 |
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| 5. |
Number of synthetic polymers among PVC, nylon 6, starch, Buna-N, terylene, bakelite, neoprene, polyisoprene, nylon 6, 6, glyptal, cellulose are |
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| 6. |
Number of structural isomers possible from the molecular formula C_(3)H_(9)N is |
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Answer» 5 (i) `underset("Propan-1-amine")(CH_(3)CH_(2)CH_(2)NH_(2))` (ii) `underset("Propan-2-amine")(CH_(3)-underset(NH_(2))underset(|)(C)H-CH_(3))` (iii) `underset("N-Methylethanamine")(CH_(3)-NH-CH_(2)CH_(3))` (iv). `underset("N,N-Dimethylmethanamine")(CH_(3)-overset(CH_(3))overset(|)(N)-CH_(3))`. |
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| 7. |
Number of structural isomers obtained by mono chlorination of methyl cyclohexane is |
Answer» 
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| 8. |
Number of structural isomers for C_(6)H_(14) is |
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Answer» 3 |
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| 10. |
Number of structural isomers for C_(6)H_(14) is: |
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Answer» 3 |
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| 12. |
Number of stereoisomers for 2-chloro-3-pentene |
Answer» 
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| 13. |
Number of stable isotopes is least when the number of neutrons and htat of protons in the isotopes are respectively |
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Answer» ODD and odd |
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| 14. |
Number of sp hybridised carbon atoms in But-2-yne is |
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Answer» 1 |
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| 16. |
Number of sp hybridized carbon atoms in the following compound is |
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Answer» 2 |
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| 17. |
Number of sp Hybridised carbon in the given structure is CH_3CH_2CH=C=C=C=CH-C-=CH |
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Answer» 7 |
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| 18. |
Number of six membered rings present in a steroid nucleus is |
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Answer» 1 |
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| 19. |
Number of single and double P- O bonds in P_4O_10 respectively are |
| Answer» ANSWER :C | |
| 20. |
Number of significant figures in 200 cm^(3) is/are |
| Answer» Solution :`200 cm^(2)` can have one, two or three SIGNIFICANT figures. | |
| 21. |
Number of sigmabonds ,pi bonds and lone pairs of electrons present in acetone semicarbazone are |
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Answer» 16, 2, 5 |
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| 22. |
Number of 'sigma' and 'pi' bonds in solid SO_(3) cyclic structure are |
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Answer» `12 SIGMA and 6 pi` |
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| 23. |
Number of sigma and it bonds present in XeO_4 molecule are |
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Answer» `5sigma` and `1pi` |
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| 24. |
Number of sigma and pi bonds present in XeOF_4 molecule are |
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Answer» `5sigma` and `1pi` |
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| 25. |
Number of S-S linkage in Marshall acid =a Number of P-P linkage in Pyrophosphoric acid =b Number of O-O linkage in Caro acid =c Number of C=C lilnkage in Carbon suboxide =d Find out the value of a+b+c+d? |
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Answer» <P> `HO-underset(OH)underset(|)overset(O) overset(||)(P)-O-underset(OH)underset(|)overset(O)overset(||)(P)-OH` Pyrophosphoric acid `b=0` `HO-underset(O)underset(||)overset(O)overset(||)(S)-O-O-H` Caro acid `c=1` `O=C=C=C=O` CARBON suboxide `d=2` |
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| 26. |
Number of secondary carbon atoms present in the given compounds is respectively: |
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Answer»
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| 27. |
Number of saturated isomeric primary amines possible for the molecular formula C_(3)H_(5)N is |
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Answer» zero |
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| 28. |
Number of S = O bond present in H_2S_2O_8 is ……………. |
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Answer» 2 |
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| 29. |
Number of resonating structures for Dewar's benzene will be |
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Answer» One |
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| 31. |
Number of pyrimidines which are common to both DNA and RNA is. |
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| 32. |
Number of aldol products in the given reaction C_(6)H_(5) - CHO + CH_(3) - CHO overset(overset(Ө)(OH))(rarr)is |
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Answer» |
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| 34. |
Number of possible structural isomers with the molecular formula C_4H_9Cl are |
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Answer» 3 |
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| 35. |
Number of possible isomers with the molecular formula C_3 H_9 Cl is |
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Answer» 3 |
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| 36. |
Number of possible isomers of glucose is |
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Answer» 16 |
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| 37. |
Number of possible isomers for the complex [Co(en)_(2)Cl_(2)]Cl will be : (en = ethylenediamine) |
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Answer» 3 
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| 38. |
Number of possible isomers of glucose is : |
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Answer» 10 |
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| 39. |
Number of possible isomers for the complex [co(en)_3Cl_3]Cl will be : (en = ethylenediamine) |
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Answer» 3 |
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| 40. |
Number of possible isomers for the complex [Co(en)_(2)Cl_(2)]Cl will be |
| Answer» Answer :C | |
| 42. |
Number of P–OH bonds is sodium dihydrogen pyrophosphate – |
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Answer» Solution :Sodium dihydrogen pyrophosphate `Na_(2)H_(2)P_(2)O_(7)` `Na-O-underset(OH)underset(|)overset(O)overset(||)P-O-underset(OH)underset(|)overset(O)overset(||)P-O-Na` |
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| 43. |
Number of P=O bonds is P_4O_6, molecule is |
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Answer» 1 |
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| 44. |
Number of pi electrons in cyclobutadienyl anion (C_(4)H_(4))^(-2) is |
Answer» Solution :Cyclobutadienyl ANION `(C_(4)H_(4))^(2-)` 
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| 45. |
Number of pi -clectrons in cyclobutadienyl anion (C_(6)H_(4))^(2-) is |
Answer» Solution : `THEREFORE ` No. of `PI`-ELECTRONS = 2 + 2 + 2 = 6 |
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| 47. |
Number of peroxide linkage in CrO_(5), H_(2)SO_(5), H_(2)S_(2)O_(8) are respectively :- |
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Answer» 2, 1, 2  No. of peroxy linkage =2 `H_(2)SO_(5):H-O-UNDERSET(O)underset(||)overset(O)overset(||)S-O-O-H` No. of peroxy linkage =1 `H_(2)S_(2)O_(8):H-O-underset(O)underset(||)overset(O)overset(||)S-O-O-underset(O)underset(||)overset(O)overset(||)S-O-H` NUMBER of peroxy linkage =1 |
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| 48. |
Number of peptide links in a tripeptide |
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Answer» 3 |
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| 49. |
Number of paired electron in O_2 molecule is |
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Answer» 8 |
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