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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. |
Methyl alcohol when reacted with CO using cobalt or Rhodium as catalyst, compound (A) is formed. (A) on heating with HI in presence of red phosphorous as catalyst gives (B). Identify (B) |
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Answer» Methyl alcohol when reacted with CO using cobalt or Rhodium as catalyst, compound (A) is formed. (A) on heating with HI in presence of red phosphorous as catalyst gives (B). Identify (B) |
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| 2. |
a compound formed by elements p and q crystallizes in a cubic close packing. cations x are equally distributed between octahedral and tetrahedral voids .if all the octahedral voids are occupied the chemical formula of the solid is |
| Answer» a compound formed by elements p and q crystallizes in a cubic close packing. cations x are equally distributed between octahedral and tetrahedral voids .if all the octahedral voids are occupied the chemical formula of the solid is | |
| 3. |
Given : A.B =0 and A×C=0 then what is the angle between B and C ? |
| Answer» Given : A.B =0 and A×C=0 then what is the angle between B and C ? | |
| 4. |
19.What is the iupac name of this structure CH3-CH(NH2)-CH=CH2 |
| Answer» 19.What is the iupac name of this structure CH3-CH(NH2)-CH=CH2 | |
| 5. |
what isy normality? |
| Answer» what isy normality? | |
| 6. |
Which of the following sequence(s) is/are correct for solubility in H2O?(1) BeSO4>MgSO4>CaSO4>BaSO4(2) Be(OH)2>Mg(OH)2>Ca(OH)2>Ba(OH)2(3) LiOH<NaOH<KOH<RbOH(4) Li2CO3<Na2CO3<K2CO3<Rb2CO3 |
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Answer» Which of the following sequence(s) is/are correct for solubility in H2O? |
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| 7. |
Chassez l'intrus.1. crayon, stylo, livres, cahier2. deux, fleur, vingt, neuf |
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Answer» Chassez l'intrus. 1. crayon, stylo, livres, cahier 2. deux, fleur, vingt, neuf |
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| 8. |
ntVapour density of B is 4th times of A and atomic weight of B = M, then atomic weight of A isn nt1. Mn nt2. 4Mn nt3. M/4n nt4. 2Mn |
| Answer» ntVapour density of B is 4th times of A and atomic weight of B = M, then atomic weight of A isn nt1. Mn nt2. 4Mn nt3. M/4n nt4. 2Mn | |
| 9. |
velocity of electron in the 3^{rd} shell ofLi^{+2 }is (c is velocity of light) a) 1/137c b) 1/274c c) 2/137c d) 1/3×137 c which formula to be used |
| Answer» velocity of electron in the 3^{rd} shell ofLi^{+2 }is (c is velocity of light) a) 1/137c b) 1/274c c) 2/137c d) 1/3×137 c which formula to be used | |
| 10. |
Potassium acid oxalate K2C2O4.3H2C2O4.4H2O can be oxidized by MnO−4 in acidic medium. Calculate the volume of 0.3 M MnO−4 reacting in acid solution with 10.16 g of the acid oxalate. (Molar mass of potassium acid oxalate is 508 g mol−1.) |
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Answer» Potassium acid oxalate K2C2O4.3H2C2O4.4H2O can be oxidized by MnO−4 in acidic medium. Calculate the volume of 0.3 M MnO−4 reacting in acid solution with 10.16 g of the acid oxalate. |
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| 11. |
If water molecule is linear A it would have high boiling point B it would be highly reactive C its dipole moment would be zero D it will be highly ionic |
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Answer» If water molecule is linear A it would have high boiling point B it would be highly reactive C its dipole moment would be zero D it will be highly ionic |
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| 12. |
are all addition polymers thermoplastic polymers and are all condensation polymers thermosetting polymers? |
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Answer» are all addition polymers thermoplastic polymers and are all condensation polymers thermosetting polymers? |
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| 13. |
Which of the following sulphides is yellow? |
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Answer» Which of the following sulphides is yellow? |
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| 14. |
The total number of stereoisomers that can exist for below compounds is: |
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Answer» The total number of stereoisomers that can exist for below compounds is: |
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| 15. |
Which enzyme converts glucose and fructose both into ethanol [MP PMT 1989, 90, 96; CPMT 1983, 84, 86, 94;KCET 1989; MNR 1978; MP PET 1994, 99] |
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Answer» Which enzyme converts glucose and fructose both into ethanol [MP PMT 1989, 90, 96; CPMT 1983, 84, 86, 94;KCET 1989; MNR 1978; MP PET 1994, 99] |
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| 16. |
Predict the major product formed in the following reaction when 1 ethenyl 1 methyl cyclopen†an e reacts with HBr |
| Answer» Predict the major product formed in the following reaction when 1 ethenyl 1 methyl cyclopen†an e reacts with HBr | |
| 17. |
100.Cu2S+Cu2O=? |
| Answer» 100.Cu2S+Cu2O=? | |
| 18. |
Calculatethe mole fraction of toluene in the vapour phase which is in equilibrium with a solution of benzene and toluene having a mole fraction of toluene 0.5. (The vapour pressure of pure benzene is 119 torr and that of toluene is 37 torr at the same temperature) |
| Answer» Calculatethe mole fraction of toluene in the vapour phase which is in equilibrium with a solution of benzene and toluene having a mole fraction of toluene 0.5. (The vapour pressure of pure benzene is 119 torr and that of toluene is 37 torr at the same temperature) | |
| 19. |
Is It possible in a Space Lattice Structure that there are more than 1 type of Unit Cells ?? |
| Answer» Is It possible in a Space Lattice Structure that there are more than 1 type of Unit Cells ?? | |
| 20. |
why entropy change can not be calculated for isochoric process?? |
| Answer» why entropy change can not be calculated for isochoric process?? | |
| 21. |
Define soaps with respect to their chemical composition. |
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Answer» Define soaps with respect to their chemical composition. |
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| 22. |
Why a mercury cell gives cons†an t volatage throughout |
| Answer» Why a mercury cell gives cons†an t volatage throughout | |
| 23. |
In the reaction Acetaldehyde O→AP,Cl2−−−→BKCN−−−→CH+,H2O−−−−−→D the product ‘D’ is |
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Answer» In the reaction Acetaldehyde O→AP,Cl2−−−→BKCN−−−→CH+,H2O−−−−−→D the product ‘D’ is |
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| 24. |
22. Species having maximum 'Cl-O' Bond order is :- 1. ClO3- 2. ClO3 3. ClO4- 4. ClO2- |
| Answer» 22. Species having maximum 'Cl-O' Bond order is :- 1. ClO3- 2. ClO3 3. ClO4- 4. ClO2- | |
| 25. |
A vessel is half filled with a liquid of refractive index .The other half of the vessel is filled with an immesicible liquid of refractive index 1.57.The apparent depth of the vessel is 50% of the actual depth. The value of is 1.6 1.67 1.5 1 |
| Answer» A vessel is half filled with a liquid of refractive index .The other half of the vessel is filled with an immesicible liquid of refractive index 1.57.The apparent depth of the vessel is 50% of the actual depth. The value of is 1.6 1.67 1.5 1 | |
| 26. |
what is free rotation of atoms about sigma or pi bond? |
| Answer» what is free rotation of atoms about sigma or pi bond? | |
| 27. |
The correct order of acidities of the following is: |
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Answer» The correct order of acidities of the following is:
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| 28. |
are methyl benzoate and phenyl ethanoate the same? |
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Answer» are methyl benzoate and phenyl ethanoate the same? |
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| 29. |
hich of the following compounds is isomeric with2, 2, 4, 4-tetramethylhexane?(a) 3-ethyl-2,2-dimethylpentane(b) 4-isopropylheptane(c) 4-ethyl-3methyl-4-n-propyloctane(d) 4, 4-diethyl-3-methylheptane.36. W |
| Answer» hich of the following compounds is isomeric with2, 2, 4, 4-tetramethylhexane?(a) 3-ethyl-2,2-dimethylpentane(b) 4-isopropylheptane(c) 4-ethyl-3methyl-4-n-propyloctane(d) 4, 4-diethyl-3-methylheptane.36. W | |
| 30. |
Obtainthe binding energy of the nuclei and inunits of MeV from the following data:= 55.934939 u =208.980388 u |
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Answer» Obtain
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| 31. |
What is the Avogardo's Law. |
| Answer» What is the Avogardo's Law. | |
| 32. |
A solution containing 25% water and 25% ethanol and 50% Acetic Acid by mass calculate the mole fraction of the each compound |
| Answer» A solution containing 25% water and 25% ethanol and 50% Acetic Acid by mass calculate the mole fraction of the each compound | |
| 33. |
Unlike soap, detergent do not forms scum with hard water and is not affected by presence of mineral acids. why? |
| Answer» Unlike soap, detergent do not forms scum with hard water and is not affected by presence of mineral acids. why? | |
| 34. |
The molarity of a solution made by mixing 20 ml of 30% by weight of H2SO4 (density = 1.5 gm/ml) and 30 ml of 50% by weight of H2SO4 (density = 1.8 gm/ml) will be |
| Answer» The molarity of a solution made by mixing 20 ml of 30% by weight of H2SO4 (density = 1.5 gm/ml) and 30 ml of 50% by weight of H2SO4 (density = 1.8 gm/ml) will be | |
| 35. |
Statement I Pb4+ compounds are stronger oxidising agents than Sn4+ compounds.Statement II The higher oxidation states for the group 14 elements are more stable for the heavier members of the group due to 'inert pair effect'.(J2008,3M) |
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Answer» Statement I Pb4+ compounds are stronger oxidising agents than Sn4+ compounds. |
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| 36. |
Why does AgBr shows schottky as well as interstitial defect ?? |
| Answer» Why does AgBr shows schottky as well as interstitial defect ?? | |
| 37. |
4 moles of A are mixed with 4 moles of B, then 2 moles of C are formed at equilibrium, according to the reaction,A + B ⇌ C + D.The equilibrium constant is : |
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Answer» 4 moles of A are mixed with 4 moles of B, then 2 moles of C are formed at equilibrium, according to the reaction, |
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| 38. |
22.What is conjugated diketone ( benzoquinone). |
| Answer» 22.What is conjugated diketone ( benzoquinone). | |
| 39. |
The volume of 0.1N KMn04 required to oxidise 2.5g oxalic acid in acidic medium i |
| Answer» The volume of 0.1N KMn04 required to oxidise 2.5g oxalic acid in acidic medium i | |
| 40. |
How many different isomeric alkenes are possible for C5H10? |
| Answer» How many different isomeric alkenes are possible for C5H10? | |
| 41. |
log(cos(e^-x)) |
| Answer» log(cos(e^-x)) | |
| 42. |
nitromethane will exhibit which type of isomerism?(a)metamerism(b)geometrical isomerism(c)tautomerism(d)optical isomerism |
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Answer» nitromethane will exhibit which type of isomerism? (a)metamerism (b)geometrical isomerism (c)tautomerism (d)optical isomerism |
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| 43. |
Why do acids release H+ ions in water only and not in other substances or liquids |
| Answer» Why do acids release H+ ions in water only and not in other substances or liquids | |
| 44. |
C_6H_5CHO\xrightarrow[{Aq. KOH, △,80^°}]{KCN |
| Answer» C_6H_5CHO\xrightarrow[{Aq. KOH, △,80^°}]{KCN | |
| 45. |
The Xenon compound which has more number of lone pairs in its central atom is : |
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Answer» The Xenon compound which has more number of lone pairs in its central atom is : |
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| 46. |
The equilibrium constant Kc for the reaction N2 (g) + 3H2 (g)⇋ 2NH3 (g) is: |
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Answer» The equilibrium constant Kc for the reaction N2 (g) + 3H2 (g)⇋ 2NH3 (g) is: |
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| 47. |
35. Given that Bond energies ofH-H and Cl-Cl are 430kjmol-1. and 240 resp. And Δ HfforHCl is -90 kjmol-1.Bond enthalpy of HCl is 1)290 2)380 3)425 4)245 |
| Answer» 35. Given that Bond energies ofH-H and Cl-Cl are 430kjmol-1. and 240 resp. And Δ HfforHCl is -90 kjmol-1.Bond enthalpy of HCl is 1)290 2)380 3)425 4)245 | |
| 48. |
To prevent rancidification of food material, which of following is added |
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Answer» To prevent rancidification of food material, which of following is added |
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| 49. |
The number of water molecule in 1 litre of water is |
| Answer» The number of water molecule in 1 litre of water is | |
| 50. |
19.Which of the following will react with water? a)CHCl3 b)Cl3CCHO c)CCl4 d)ClCH2CH2Cl |
| Answer» 19.Which of the following will react with water? a)CHCl3 b)Cl3CCHO c)CCl4 d)ClCH2CH2Cl | |
