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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 NOT a criterion for similarity? |
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Answer» Which of the following is NOT a criterion for similarity? |
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| 2. |
What is the formula for number of nodes and nodal planes present in bonding and antibonding orbitals? |
| Answer» What is the formula for number of nodes and nodal planes present in bonding and antibonding orbitals? | |
| 3. |
How many of following reagent(s) is correct in options1.CH3CH=CHCHO→CH3CH=CHCOOH: Ammoniacal AgNO32.CH3CH=CHCHO→CH3CH=CHCH2OH:KMnO43.R−CHO→R−CH2OH:NaBH44.CH3CH2COCl→CH3CH2CHO:H2,Pd/BaSO4 |
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Answer» How many of following reagent(s) is correct in options 1.CH3CH=CHCHO→CH3CH=CHCOOH: Ammoniacal AgNO3 2.CH3CH=CHCHO→CH3CH=CHCH2OH:KMnO4 3.R−CHO→R−CH2OH:NaBH4 4.CH3CH2COCl→CH3CH2CHO:H2,Pd/BaSO4 |
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| 4. |
A is a set containing 10 elements. A subset P1 of A is formed and the set A is reconstructed by replacing all its elements. Again a subset P2 is formed and A is again reconstructed. Similarly 10 subsets upto P10 are formed. Find the probability that i) no two subsets have a common elementii) no element is present in all the 10 subsets |
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Answer» A is a set containing 10 elements. A subset P1 of A is formed and the set A is reconstructed by replacing all its elements. Again a subset P2 is formed and A is again reconstructed. Similarly 10 subsets upto P10 are formed. Find the probability that i) no two subsets have a common element ii) no element is present in all the 10 subsets |
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| 5. |
How many electrons participate in resonance in : (1) Pyrrole and (2) Pyridine ? |
| Answer» How many electrons participate in resonance in : (1) Pyrrole and (2) Pyridine ? | |
| 6. |
For positive deviation from Raoult’s law, which among the given relations is incorrect? |
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Answer» For positive deviation from Raoult’s law, which among the given relations is incorrect? |
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| 7. |
the radius of which ion is closest to that Li^{+ }ion? a) Na^+ b)Be^{+2} c)Mg^{+2} d)Al^{+3} explain why? |
| Answer» the radius of which ion is closest to that Li^{+ }ion? a) Na^+ b)Be^{+2} c)Mg^{+2} d)Al^{+3} explain why? | |
| 8. |
Identify the major product of the following reaction. |
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Answer» Identify the major product of the following reaction. |
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| 9. |
The rate of diffusion of methane at a given temperature is twice that of a gas X. The molecular weight of X is- (1) 64.0 ( 2 ) 32.0 (3) 4.0 (4) 8.0 |
| Answer» The rate of diffusion of methane at a given temperature is twice that of a gas X. The molecular weight of X is- (1) 64.0 ( 2 ) 32.0 (3) 4.0 (4) 8.0 | |
| 10. |
Explain the Kirchoff's second law |
| Answer» Explain the Kirchoff's second law | |
| 11. |
Which of the following compound has maximum boiling point |
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Answer» Which of the following compound has maximum boiling point |
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| 12. |
Under what conditions we use 1-r as denominator and under what conditions we use r-1 as denominator? |
| Answer» Under what conditions we use 1-r as denominator and under what conditions we use r-1 as denominator? | |
| 13. |
what is carbil amine reaction? |
| Answer» what is carbil amine reaction? | |
| 14. |
17.What is dancing resonance? Explain in detail |
| Answer» 17.What is dancing resonance? Explain in detail | |
| 15. |
Why do mixtures do not obey law of constant proportions |
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Answer» Why do mixtures do not obey law of constant proportions |
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| 16. |
Find the major product 'C'. |
Answer»  Find the major product 'C'. |
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| 17. |
The number of stereomers of the given compound is X. The value of X/4 is . |
Answer»  The number of stereomers of the given compound is X. The value of X/4 is |
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| 18. |
Does H+ ion has highest mobility and thus highest conductance as compared to other ions in aqueous solutions?? And is it due to formation of H3O+ ?? |
| Answer» Does H+ ion has highest mobility and thus highest conductance as compared to other ions in aqueous solutions?? And is it due to formation of H3O+ ?? | |
| 19. |
One litre of a gas at STP weight 1.16 g it can possible be |
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Answer» One litre of a gas at STP weight 1.16 g it can possible be |
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| 20. |
Only 2 vectors of same type can be added to get same quantity. Explain the meaning. |
| Answer» Only 2 vectors of same type can be added to get same quantity. Explain the meaning. | |
| 21. |
30 Oxidation number of N in N2O is |
| Answer» 30 Oxidation number of N in N2O is | |
| 22. |
The compound whose 0.1 M solution is basic is |
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Answer» The compound whose 0.1 M solution is basic is |
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| 23. |
what is the composition of superphosphate ?? |
| Answer» what is the composition of superphosphate ?? | |
| 24. |
What is ferroelectricity? |
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Answer» What is ferroelectricity? |
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| 25. |
20 g of a mixture containing MgCO and MgCl2is heated with dil. HCI, the amount of CO2 evolvedis 4 g, then the percentage composition of mixture |
| Answer» 20 g of a mixture containing MgCO and MgCl2is heated with dil. HCI, the amount of CO2 evolvedis 4 g, then the percentage composition of mixture | |
| 26. |
Unjumble these words.1. iurvtoe2. mpoem3. rostuse4. lbonal5. ndihsawc6. oncary7. clage8. ihscae |
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Answer» Unjumble these words. 1. iurvtoe 2. mpoem 3. rostuse 4. lbonal 5. ndihsawc 6. oncary 7. clage 8. ihscae |
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| 27. |
Which reagents could be used to carry out the following reaction? |
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Answer» Which reagents could be used to carry out the following reaction? |
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| 28. |
The plot given below shows P−T curves (where P is the pressure and T is the temperature) for two solvents X and Y and isomolal solution of NaCl in these solvents. NaCl completely dissociates in both the solvents.On addition of equal number of moles of a non-volatile solute S in equal amount (in kg) of these solvents, the elevation of boiling point of solvent X is three times that of solvent Y. Solute S is known to undergo dimerisation in these solvents. If the degree of dimerisation is 0.7 in solvent Y, the degree of dimerisation in solvent X is |
Answer» The plot given below shows P−T curves (where P is the pressure and T is the temperature) for two solvents X and Y and isomolal solution of NaCl in these solvents. NaCl completely dissociates in both the solvents. On addition of equal number of moles of a non-volatile solute S in equal amount (in kg) of these solvents, the elevation of boiling point of solvent X is three times that of solvent Y. Solute S is known to undergo dimerisation in these solvents. If the degree of dimerisation is 0.7 in solvent Y, the degree of dimerisation in solvent X is |
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| 29. |
ntThe enthalphy of hydrogenation of cyclohexene is -119.5kj/mole . if the resonance energy of benzene is -150.4kj/mole . its enthalphy of hydrogenation would be .n |
| Answer» ntThe enthalphy of hydrogenation of cyclohexene is -119.5kj/mole . if the resonance energy of benzene is -150.4kj/mole . its enthalphy of hydrogenation would be .n | |
| 30. |
Given P(A/B)=0.8 , P(B/A)=0.6 & P(A'UB')=0.7; Find the value of P(A/B') |
| Answer» Given P(A/B)=0.8 , P(B/A)=0.6 & P(A'UB')=0.7; Find the value of P(A/B') | |
| 31. |
Which one of the given compounds is more basic and why: Parachloroaniline or aniline? |
| Answer» Which one of the given compounds is more basic and why: Parachloroaniline or aniline? | |
| 32. |
Q. Why alkali and alkaline earth metals have high thermal conductivity? |
| Answer» Q. Why alkali and alkaline earth metals have high thermal conductivity? | |
| 33. |
what about the zero lying in between a zero and a significant digit |
| Answer» what about the zero lying in between a zero and a significant digit | |
| 34. |
A solution is to be kept between 68°F and 77°F. What isthe range in temperature in degree Celsius (C) if theCelsius/Fahrenheit (F) conversion formula is given by |
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Answer» A solution is to be kept between 68°F and 77°F. What is |
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| 35. |
Which of the following represents a pair of covalent hydrides? |
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Answer» Which of the following represents a pair of covalent hydrides? |
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| 36. |
Aluminum reacts with sulfuric acid to form aluminum sulfate and hydrogen. What is the volume of hydrogen gas in liters (L) produced at 300 K and 1.0 atm pressure, when 5.4 g of aluminum and 50.0 mL of 5.0 M sulfuric acid are combined for the reaction?(Use molar mass of aluminum as 27.0 g mol−1, R=0.082 atm L mol−1 K−1) |
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Answer» Aluminum reacts with sulfuric acid to form aluminum sulfate and hydrogen. What is the volume of hydrogen gas in liters (L) produced at 300 K and 1.0 atm pressure, when 5.4 g of aluminum and 50.0 mL of 5.0 M sulfuric acid are combined for the reaction? (Use molar mass of aluminum as 27.0 g mol−1, R=0.082 atm L mol−1 K−1) |
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| 37. |
Which of the following reagent(s) is/are correctly matched with the reaction? |
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Answer» Which of the following reagent(s) is/are correctly matched with the reaction? |
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| 38. |
ACl3 is trigonal pyramidal and ECl3 is trigonal planar. These two combine to give AECl6. Crystallographic studies and structural analysis reveal that AECl6 is an ionic compound. If the shape of the anion is tetrahedral, then the shape of the cation is: |
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Answer» ACl3 is trigonal pyramidal and ECl3 is trigonal planar. These two combine to give AECl6. Crystallographic studies and structural analysis reveal that AECl6 is an ionic compound. If the shape of the anion is tetrahedral, then the shape of the cation is: |
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| 39. |
find the number of enantiomers of \lbrack M(en)_2a_2b_2\rbrack. where M is the central metal atom, a,b are ligands and (en) represents ethylene 1,2 diamine. |
| Answer» find the number of enantiomers of \lbrack M(en)_2a_2b_2\rbrack. where M is the central metal atom, a,b are ligands and (en) represents ethylene 1,2 diamine. | |
| 40. |
Find the number of millimoles of KOH in a sample containing 30 KOH formula units. |
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Answer» Find the number of millimoles of KOH in a sample containing 30 KOH formula units. |
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| 41. |
two mono basic weak acids have same H+ ion concentratrion. What its the relation between dissociation cons†an t and dilution 1) Ka1V1=Ka2V2 2)Ka1V2=Ka2V1 3) no |
| Answer» two mono basic weak acids have same H+ ion concentratrion. What its the relation between dissociation cons†an t and dilution 1) Ka1V1=Ka2V2 2)Ka1V2=Ka2V1 3) no | |
| 42. |
among isomeric alcohols , solubility increases with branching. How will the order for increasing solublity be for n butyl alcohol, secondary butyl alcohol , iso butyl alcohol pls explain with structures |
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Answer» among isomeric alcohols , solubility increases with branching. How will the order for increasing solublity be for n butyl alcohol, secondary butyl alcohol , iso butyl alcohol pls explain with structures |
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| 43. |
The thionyl chloride method is preferred over hydrogen chloride or phosphorous chloride method for the preparation of haloalkanes because both the by-products (SO2 and HCl) in this case are gases and escape leaving behind pure chloroalkane. This reaction takes place in the presence of |
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Answer» The thionyl chloride method is preferred over hydrogen chloride or phosphorous chloride method for the preparation of haloalkanes because both the by-products (SO2 and HCl) in this case are gases and escape leaving behind pure chloroalkane. This reaction takes place in the presence of |
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| 44. |
82.1.How to calculate dipole moment of a compound? 2.How to write molecular orbital configuration of "HETERODIATOMIC" molecule? 3.How to draw resonating Structures of various compounds? |
| Answer» 82.1.How to calculate dipole moment of a compound? 2.How to write molecular orbital configuration of "HETERODIATOMIC" molecule? 3.How to draw resonating Structures of various compounds? | |
| 45. |
Assertion : the ligands nitro and nitrito are called ambidentate ligands Reason : these ligands give linkage isomerism A: assertion true reason true and reason correct explanation of assertion B: assertion true reason true but reason not correct explanation of readon C: assertion true reason false D : assertion false reason false |
| Answer» Assertion : the ligands nitro and nitrito are called ambidentate ligands Reason : these ligands give linkage isomerism A: assertion true reason true and reason correct explanation of assertion B: assertion true reason true but reason not correct explanation of readon C: assertion true reason false D : assertion false reason false | |
| 46. |
What do you observe when sugar crystals are mixed in water? |
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Answer» What do you observe when sugar crystals are mixed in water? |
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| 47. |
A carbonyl compound P (from i-iii), which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin Q. Ozonolysis of Q leads to a dicarbonyl compound R, which undergoes intramolecular aldol reaction to give predominantly S.1.The structure of Q and R are respectively: |
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Answer» A carbonyl compound P (from i-iii), which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin Q. Ozonolysis of Q leads to a dicarbonyl compound R, which undergoes intramolecular aldol reaction to give predominantly S. |
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| 48. |
What is lattice energy of the solid ? |
| Answer» What is lattice energy of the solid ? | |
| 49. |
Which of the following sequence correctly represents the decreasing acidic nature of oxides? |
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Answer» Which of the following sequence correctly represents the decreasing acidic nature of oxides? |
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| 50. |
14(L)Consider the following statements:I The pressure of moist gas is more than that ofdry gas under identical condition.Critical temperature is the highest temperatureat which liquid and vapour coexistAt constant temperature, PV vs P (Ppressure and V = volume) plot for real gaseswill be a straight line at very high pressure.28. 10The correct statement(s) is/are(2) Only \vert & II)(1) Only II & IlII)(3) Only I & Il |
| Answer» 14(L)Consider the following statements:I The pressure of moist gas is more than that ofdry gas under identical condition.Critical temperature is the highest temperatureat which liquid and vapour coexistAt constant temperature, PV vs P (Ppressure and V = volume) plot for real gaseswill be a straight line at very high pressure.28. 10The correct statement(s) is/are(2) Only \vert & II)(1) Only II & IlII)(3) Only I & Il | |
