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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. |
Which of the following is a chain growth polymer |
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Answer» Which of the following is a chain growth polymer |
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| 2. |
Molal depression constant for water is 1.86°C. The freezing point of a 0.05 molal solution of a non-electrolyte in water is |
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Answer» Molal depression constant for water is 1.86°C. The freezing point of a 0.05 molal solution of a non-electrolyte in water is |
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| 3. |
23. Which of following will undergo aldol condensation ? (a)2,2-dimethyl propanal (b)2-methyl butanal (c)2,2,4-trimethyl pentan-3-one (d)2-methyl cyclohexanone |
| Answer» 23. Which of following will undergo aldol condensation ? (a)2,2-dimethyl propanal (b)2-methyl butanal (c)2,2,4-trimethyl pentan-3-one (d)2-methyl cyclohexanone | |
| 4. |
Acetyl chloride cannot be obtained from acetic acid with |
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Answer» Acetyl chloride cannot be obtained from acetic acid with |
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| 5. |
2 ml of sodium hydroxide solution is added to a few pieces of granulated zinc metal taken in a test tube when the contents are formed a gas involves which is bubbled through a soap solution before testing write the equation of the chemical reaction involved and the tests to detect the gas in the gas which will be evolved when the same metal reacts with dilute solution of a strong acid2 ml of sodium hydroxide solution is added to a few pieces of granulated zinc metal taken in a test tube when the contents are formed a gas involves which is bubbled through a soap solution before testing write the equation of the chemical reaction involved and the tests to detect the gas in the gas which will be evolved when the same metal reacts with dilute solution of a strong acid . |
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Answer» 2 ml of sodium hydroxide solution is added to a few pieces of granulated zinc metal taken in a test tube when the contents are formed a gas involves which is bubbled through a soap solution before testing write the equation of the chemical reaction involved and the tests to detect the gas in the gas which will be evolved when the same metal reacts with dilute solution of a strong acid2 ml of sodium hydroxide solution is added to a few pieces of granulated zinc metal taken in a test tube when the contents are formed a gas involves which is bubbled through a soap solution before testing write the equation of the chemical reaction involved and the tests to detect the gas in the gas which will be evolved when the same metal reacts with dilute solution of a strong acid . |
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| 6. |
The wavelength of Hα line of the Paschen series is 6912 oA. The wavelength of the Hβ line of Paschen series is (in oA) : |
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Answer» The wavelength of Hα line of the Paschen series is 6912 oA. The wavelength of the Hβ line of Paschen series is (in oA) : |
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| 7. |
39. In the formation of N2 positive from N2 the electron is removed from option1) piee orbital 2) sigma orbital |
| Answer» 39. In the formation of N2 positive from N2 the electron is removed from option1) piee orbital 2) sigma orbital | |
| 8. |
10. A gaseous mixture contains equal volumes of O2 and He. What is the mole fraction of He in in the mixture? |
| Answer» 10. A gaseous mixture contains equal volumes of O2 and He. What is the mole fraction of He in in the mixture? | |
| 9. |
Calculate the equivalent mass of alum K2SO4.Al2(SO4)3.24H2O where M is the molecular weigh |
| Answer» Calculate the equivalent mass of alum K2SO4.Al2(SO4)3.24H2O where M is the molecular weigh | |
| 10. |
At high temperatures, nitrogen directly combines with: |
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Answer» At high temperatures, nitrogen directly combines with: |
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| 11. |
Consider the following reaction. How many methoxy group is/are present in the final product? |
Answer» Consider the following reaction. How many methoxy group is/are present in the final product? |
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| 12. |
Explainthe important aspects of resonance with reference to the ion. |
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Answer» Explain |
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| 13. |
calculate oxidation no. ( with explaination) 1) S in H_2S_4O_6 2) C in CH_3COO |
| Answer» calculate oxidation no. ( with explaination) 1) S in H_2S_4O_6 2) C in CH_3COO | |
| 14. |
Arrange in orders of atomic and ionic radii:- (a) I^+, I, I^-; (b) Sc, Y, La, Ac; (c) Cu, Ag, Au. |
| Answer» Arrange in orders of atomic and ionic radii:- (a) I^+, I, I^-; (b) Sc, Y, La, Ac; (c) Cu, Ag, Au. | |
| 15. |
The area of a square is 5.29 cm2. The area of 7 such squares taking into account the significant figures is- |
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Answer» The area of a square is 5.29 cm2. The area of 7 such squares taking into account the significant figures is- |
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| 16. |
The relation between internal energy U, pressure P and volume V of a gas in an adiabatic process is: U = a + bPV where a = b = 3. The ratio of specific heats is (Answer up to two decimal places) |
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Answer» The relation between internal energy U, pressure P and volume V of a gas in an adiabatic process is: U = a + bPV where a = b = 3. The ratio of specific heats is |
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| 17. |
Which noble gas is the least polarisable? |
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Answer» Which noble gas is the least polarisable? |
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| 18. |
Among the following, select a path function Enthalpy Entropy Heat capacity Gibbs free energy |
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Answer» Among the following, select a path function Enthalpy Entropy Heat capacity Gibbs free energy |
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| 19. |
Consider the reactions: (a) H3PO2(aq) + 4 AgNO3(aq) + 2 H2O(l) → H3PO4(aq) + 4Ag(s) + 4HNO3(aq) (b) H3PO2(aq) + 2CuSO4(aq) + 2 H2O(l) → H3PO4(aq) + 2Cu(s) + H2SO4(aq) (c) C6H5CHO(l) + 2[Ag (NH3)2]+(aq) + 3OH–(aq) → C6H5COO–(aq) + 2Ag(s) + 4NH3 (aq) + 2 H2O(l) (d) C6H5CHO(l) + 2Cu2+(aq) + 5OH–(aq) → No change observed. What inference do you draw about the behaviour of Ag+ and Cu2+ from these reactions? |
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Answer» Consider
(a)
(b)
(c)
(d)
What
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| 20. |
6.Give the difference in angular momentum of an electron present in 3p and 4p orbitals? |
| Answer» 6.Give the difference in angular momentum of an electron present in 3p and 4p orbitals? | |
| 21. |
On a body diagonal of fcc unit cell , total number of voids present is 1. 1 2. 2 3. 3 4. |
| Answer» On a body diagonal of fcc unit cell , total number of voids present is 1. 1 2. 2 3. 3 4. | |
| 22. |
A refrigerator is to maintain eatableskept inside at 9°C. If room temperature is 36° C, calculatethe coefficient of performance. |
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Answer» A refrigerator is to maintain eatables |
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| 23. |
Action of nitrous acid on ethyl amine gives |
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Answer» Action of nitrous acid on ethyl amine gives |
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| 24. |
जुलूस के लाल बाज़ार आने पर लोगों की क्या दशा हुई? |
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Answer» जुलूस के लाल बाज़ार आने पर लोगों की क्या दशा हुई? |
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| 25. |
Chlorine is used to purify drinking water. Excess of chlorine is harmful. The excess of chlorine is removed by treating with sulphur dioxide. Present a balanced equation for this redox change taking place in water. |
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Answer» Chlorine is used to purify drinking water. Excess of chlorine is harmful. The excess of chlorine is removed by treating with sulphur dioxide. Present a balanced equation for this redox change taking place in water. |
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| 26. |
0.12gm of metal by reacting with dil HCL gave 112ml of H2 gas at STP. calculate the equivalent weight of metal. |
| Answer» 0.12gm of metal by reacting with dil HCL gave 112ml of H2 gas at STP. calculate the equivalent weight of metal. | |
| 27. |
What are strong and weak acids? Categorise the following into strong and weak acids.Hydrochloric acid, citric acid, acetic acid, nitric acid, formic acid, sulphuric acid. |
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Answer» What are strong and weak acids? Categorise the following into strong and weak acids. Hydrochloric acid, citric acid, acetic acid, nitric acid, formic acid, sulphuric acid. |
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| 28. |
Two chambers, A and B, containing solutions are separated by a semipermeable membrane.(g) What will be the direction of the movement of water when two solutions with Ψw = 0.2 MPa and Ψw = 0.1 MPa are separated by a selectively permeable membrane? |
Answer» Two chambers, A and B, containing solutions are separated by a semipermeable membrane. (g) What will be the direction of the movement of water when two solutions with Ψw = 0.2 MPa and Ψw = 0.1 MPa are separated by a selectively permeable membrane? |
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| 29. |
Why Standard electrode potential of hydrogen is taken as 0? |
| Answer» Why Standard electrode potential of hydrogen is taken as 0? | |
| 30. |
36. Calculate the no. of moles of KMnO required for the oxidation of 1 mol of FeCO in acidity medium ? (1) 1 (2) 5/3 (3) 3/5 (4) 1/5 |
| Answer» 36. Calculate the no. of moles of KMnO required for the oxidation of 1 mol of FeCO in acidity medium ? (1) 1 (2) 5/3 (3) 3/5 (4) 1/5 | |
| 31. |
which is the strongest base ? _1-pyrole 2-aniline 3-pyridine 4-C6H10NH |
| Answer» which is the strongest base ? _1-pyrole 2-aniline 3-pyridine 4-C6H10NH | |
| 32. |
During the electrolytic extraction of aluminium, purified alumina is mixed with Na3AlF6 and CaF2. Why? |
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Answer» During the electrolytic extraction of aluminium, purified alumina is mixed with Na3AlF6 and CaF2. Why? |
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| 33. |
Which of the ores mentioned in Table 6.1 can be concentrated by magnetic separation method? |
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Answer» Which of the ores
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| 34. |
The species which can best serve as an initiator for the cationic polymerization is |
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Answer» The species which can best serve as an initiator for the cationic polymerization is |
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| 35. |
Vapour pressure of dilute aqueous solution of glucose is 750mm of Hg at 373K. The mole fraction of solute is________. |
| Answer» Vapour pressure of dilute aqueous solution of glucose is 750mm of Hg at 373K. The mole fraction of solute is________. | |
| 36. |
The latent heat of vapourisation of water is 9700 cal/mole. If the boiling point is 100°C, the ebullioscopic constant of water is |
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Answer» The latent heat of vapourisation of water is 9700 cal/mole. If the boiling point is 100°C, the ebullioscopic constant of water is |
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| 37. |
what is reductive electrode potential? |
| Answer» what is reductive electrode potential? | |
| 38. |
Find the transfer function Y(s)/X(s) of the system given below: |
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Answer» Find the transfer function Y(s)/X(s) of the system given below: |
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| 39. |
Q 53/180 If the Ksp of Ba(OH)2 is 1 x 10-6 then howmuch NaOH must be added to 1000 ml of 102 Msolution of BaCl2 to start the precipitation of Ba(OH)2? |
| Answer» Q 53/180 If the Ksp of Ba(OH)2 is 1 x 10-6 then howmuch NaOH must be added to 1000 ml of 102 Msolution of BaCl2 to start the precipitation of Ba(OH)2? | |
| 40. |
39. How to use bent rule in comparing bond length of any bond |
| Answer» 39. How to use bent rule in comparing bond length of any bond | |
| 41. |
Which of the following will form only one oxime on reaction with NH2OH solution? |
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Answer» Which of the following will form only one oxime on reaction with NH2OH solution? |
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| 42. |
Chlorobenzene on heating with NH3under pressure in the presence of cuprous oxide gives |
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Answer» Chlorobenzene on heating with NH3under pressure in the presence of cuprous oxide gives |
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| 43. |
Arrange the following in order of property indicated for each set. (i) H2O,H2S,H2Se,H2Te-increasing acidic character (ii) HF,HCl,HBr,HI -decreasing bond enthalpy |
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Answer» Arrange the following in order of property indicated for each set. (i) H2O,H2S,H2Se,H2Te-increasing acidic character (ii) HF,HCl,HBr,HI -decreasing bond enthalpy |
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| 44. |
Mechanism of Hoffman bromide degradation reaction |
| Answer» Mechanism of Hoffman bromide degradation reaction | |
| 45. |
write value of Kc for following imaginary reactions (1)A(g)+B(g)-->C(Aq)+D(Ppt.) (2)A(s)+B(g)-->C(liq.) |
| Answer» write value of Kc for following imaginary reactions (1)A(g)+B(g)-->C(Aq)+D(Ppt.) (2)A(s)+B(g)-->C(liq.) | |
| 46. |
Why is the diffusion of gas very high |
| Answer» Why is the diffusion of gas very high | |
| 47. |
Which of the following does not contain the true peroxide ion? |
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Answer» Which of the following does not contain the true peroxide ion? |
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| 48. |
Explain Lenz's law of conservation of energy. |
| Answer» Explain Lenz's law of conservation of energy. | |
| 49. |
How much lattice enthalpy is released in formation of NaCl |
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Answer» How much lattice enthalpy is released in formation of NaCl |
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| 50. |
Which is more basic and why? |
| Answer» Which is more basic and why? | |
