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. |
What are the uses of iron ore and manganese? |
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Answer» What are the uses of iron ore and manganese? |
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| 2. |
Density is represent by which symbol. |
| Answer» Density is represent by which symbol. | |
| 3. |
The half-life of a first order reaction is 24 hrs. If we start with 10 M initial concentration of the reactant then conc. after 96 hrs will be |
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Answer» The half-life of a first order reaction is 24 hrs. If we start with 10 M initial concentration of the reactant then conc. after 96 hrs will be |
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| 4. |
A gas sample is cooled and loses 65 J of heat. The gas contracts as it cools and work done on the system equal to 20 J. What are q, w and △U ? |
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Answer» A gas sample is cooled and loses 65 J of heat. The gas contracts as it cools and work done on the system equal to 20 J. What are q, w and △U ? |
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| 5. |
How many bonds are present in CO32− ion? |
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Answer» How many bonds are present in CO32− ion? |
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| 6. |
According to kinetic theory of gases, for a diatomic molecule |
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Answer» According to kinetic theory of gases, for a diatomic molecule
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| 7. |
what is the hybridization of benzyl carbonium ion and explain i |
| Answer» what is the hybridization of benzyl carbonium ion and explain i | |
| 8. |
Which of the following oxyacids of Sulphur have a peroxy –O–O– linkage? |
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Answer» Which of the following oxyacids of Sulphur have a peroxy –O–O– linkage? |
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| 9. |
what is hydrogen oxidation no.? |
| Answer» what is hydrogen oxidation no.? | |
| 10. |
the What would be the electron dot structure of a molecule of sulphur whichis made up of eight atoms of sulphur |
| Answer» the What would be the electron dot structure of a molecule of sulphur whichis made up of eight atoms of sulphur | |
| 11. |
Which of the following compounds will give a significant amount of meta-product during mononitration reaction? |
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Answer» Which of the following compounds will give a significant amount of meta-product during mononitration reaction? |
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| 12. |
Which of the following aqueous solutions has the highest freezing point 0.6m fructose0.3m CaCl20.1m Al2(SO4)30.2m Mg3(PO4)2 |
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Answer» Which of the following aqueous solutions has the highest freezing point 0.6m fructose 0.3m CaCl2 0.1m Al2(SO4)3 0.2m Mg3(PO4)2 |
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| 13. |
Consider the following reactions,A is: |
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Answer» Consider the following reactions, |
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| 14. |
Choose the fully eclipsed conformation of butane from among the following. |
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Answer» Choose the fully eclipsed conformation of butane from among the following. |
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| 15. |
The octahedral complex of a metal ion M3+ with four monodentate ligands L1,L2,L3andL4 absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is (IIT-JEE, Advanced 2014) |
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Answer» The octahedral complex of a metal ion M3+ with four monodentate ligands L1,L2,L3andL4 absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is |
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| 16. |
Q 1-ethanal is more soluble in water than ethane but less than the ethanol Q 2-acetone is completely miscible in water while acetophenone does not |
| Answer» Q 1-ethanal is more soluble in water than ethane but less than the ethanol Q 2-acetone is completely miscible in water while acetophenone does not | |
| 17. |
Structures of some common polymers are given. Which one is not correctly represented? |
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Answer» Structures of some common polymers are given. Which one is not correctly represented? |
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| 18. |
Dichromate ion in acidic medium oxidizes stannous ion as x––Sn2++y–Cr2O2−7+z–H+→a––Sn4++b–Cr3++c–H2O then |
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Answer» Dichromate ion in acidic medium oxidizes stannous ion as x––Sn2++y–Cr2O2−7+z–H+→a––Sn4++b–Cr3++c–H2O then |
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| 19. |
Unsaturated hydrocarbons contain multiple bonds between the two C-atoms and show addition reaction. Give the test to distinguish ethane from ethene. |
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Answer» Unsaturated hydrocarbons contain multiple bonds between the two C-atoms and show addition reaction. Give the test to distinguish ethane from ethene. |
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| 20. |
Which of the following reagent reacts differently with HCHO, CH3CHO and CH3COCH3?A.) HCNB.) NH2NH2C.) NH2OHD.) NH3 |
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Answer» Which of the following reagent reacts differently with HCHO, CH3CHO and CH3COCH3? A.) HCN B.) NH2NH2 C.) NH2OH D.) NH3 |
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| 21. |
By treating diazonium salts with cuprous cyanide or KCN and copper powder it forms: |
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Answer» By treating diazonium salts with cuprous cyanide or KCN and copper powder it forms: |
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| 22. |
45. How long a current of 2A has to be passed through a solution of AgNO3 to coat a metal surface of 80cm2 with 5 micrometer thick layer |
| Answer» 45. How long a current of 2A has to be passed through a solution of AgNO3 to coat a metal surface of 80cm2 with 5 micrometer thick layer | |
| 23. |
44. Hybridisation of h2o |
| Answer» 44. Hybridisation of h2o | |
| 24. |
Which of the following will have the highest boiling point at 1 atm pressure: |
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Answer» Which of the following will have the highest boiling point at 1 atm pressure: |
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| 25. |
what is alpha carotene?? |
| Answer» what is alpha carotene?? | |
| 26. |
How many ways 3 men and 2 women can be seated in a row in such a way that there is no restriction ? |
| Answer» How many ways 3 men and 2 women can be seated in a row in such a way that there is no restriction ? | |
| 27. |
For the reaction, 2SO2(g)+O2(g)⇌2SO3(g)What is Kc when the equilibrium concentration of [SO2]=0.60 M, [O2]=0.82 M and [SO3]=1.90 M? |
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Answer» For the reaction, 2SO2(g)+O2(g)⇌2SO3(g) |
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| 28. |
Decreasing order of acidic strength of the following compounds is : |
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Answer» Decreasing order of acidic strength of the following compounds is : |
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| 29. |
Aluminium chloride exists as dimer, AlCl6 in solid state as well as in solution of non-polar solvents such as C6H6. When dissolved in water it gives |
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Answer» Aluminium chloride exists as dimer, AlCl6 in solid state as well as in solution of non-polar solvents such as C6H6. When dissolved in water it gives |
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| 30. |
What is the entropy of solution of a solution showing negative deviation from raoult's law? |
| Answer» What is the entropy of solution of a solution showing negative deviation from raoult's law? | |
| 31. |
15. The vapour pressure of a solution of a non-volatile solute B in a solvent A is 95% of the vapour pressure of the solvent at the same temperature. If the molecular weight of the solvent is 0.3 times the molecular weight of the solute, what is the weight of ratio of solvent to solute? |
| Answer» 15. The vapour pressure of a solution of a non-volatile solute B in a solvent A is 95% of the vapour pressure of the solvent at the same temperature. If the molecular weight of the solvent is 0.3 times the molecular weight of the solute, what is the weight of ratio of solvent to solute? | |
| 32. |
Increasing order of Δo of the following complex is: |
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Answer» Increasing order of Δo of the following complex is: |
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| 33. |
Thediameter of zinc atom is.Calculate(a) radius of zinc atom in pm and (b) number of atoms present in alength of 1.6 cm if the zinc atoms are arranged side by sidelengthwise. |
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Answer» The |
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| 34. |
Which of the following shows optical activity. |
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Answer» Which of the following shows optical activity. |
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| 35. |
What are noble gases? What makes them so unique? |
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Answer» What are noble gases? What makes them so unique? |
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| 36. |
Diff betn bravais lattice and lattice points!? |
| Answer» Diff betn bravais lattice and lattice points!? | |
| 37. |
The correct order of electronegativity is: |
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Answer» The correct order of electronegativity is: |
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| 38. |
Q. A sample of a radioactive substance undergoes 80% decomposition in 345 minutes it's half life is ____ minutes 1. ln 2/ ln 5 345 2. ln 5/ ln 2 345 3. ln 5/ ln 4 345 4. ln 4/ ln 5 345 |
| Answer» Q. A sample of a radioactive substance undergoes 80% decomposition in 345 minutes it's half life is ____ minutes 1. ln 2/ ln 5 345 2. ln 5/ ln 2 345 3. ln 5/ ln 4 345 4. ln 4/ ln 5 345 | |
| 39. |
Predict the number of unpaired electrons in a square planar d8 ion.(Explain in detail to clear concept) |
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Answer» Predict the number of unpaired electrons in a square planar d8 ion. (Explain in detail to clear concept) |
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| 40. |
The standard Gibbs free energy change for the reaction H2OH++OH−at25∘C is |
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Answer» The standard Gibbs free energy change for the reaction H2OH++OH−at25∘C is |
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| 41. |
Which of the following reaction will give Hofmann product as major product? |
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Answer» Which of the following reaction will give Hofmann product as major product? |
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| 42. |
A compound formed by elements X and Y crystallizes in the cubic structure where Y atoms are at the corners of the cube and X atoms are at the alternate faces. What is the formula of the compound? |
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Answer» A compound formed by elements X and Y crystallizes in the cubic structure where Y atoms are at the corners of the cube and X atoms are at the alternate faces. What is the formula of the compound? |
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| 43. |
What is the mass of the precipitate form when 50ml of 16.9% solution of AgNO3 is mixed with 50ml of 5.8% NaCl? |
| Answer» What is the mass of the precipitate form when 50ml of 16.9% solution of AgNO3 is mixed with 50ml of 5.8% NaCl? | |
| 44. |
In CsCl type of ionic crystal Why Cs ion does not lie at corners?Is Cs ion is greater than Cl ion? |
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Answer» In CsCl type of ionic crystal Why Cs ion does not lie at corners? Is Cs ion is greater than Cl ion? |
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| 45. |
For the reaction: A+B→C+D, doubling the concentration of both the reactants increases the reaction rate by 8 times and doubling the concentration of only B simply doubles the reaction rate. The rate law is given as: |
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Answer» For the reaction: A+B→C+D, doubling the concentration of both the reactants increases the reaction rate by 8 times and doubling the concentration of only B simply doubles the reaction rate. The rate law is given as: |
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| 46. |
Binding energy per nucleon of 1H2 and 2He4 are 1.1 MeV and 7.0 MeV respectively. Energy released in the process 1H2+1H2→ 2He4 is |
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Answer» Binding energy per nucleon of 1H2 and 2He4 are 1.1 MeV and 7.0 MeV respectively. Energy released in the process 1H2+1H2→ 2He4 is |
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| 47. |
The active mass of 7.0g of nitrogen in a 2.0L container would be |
| Answer» The active mass of 7.0g of nitrogen in a 2.0L container would be | |
| 48. |
Hydrolith is the common name of: |
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Answer» Hydrolith is the common name of: |
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| 49. |
The element with atomic number 33 belongs to |
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Answer» The element with atomic number 33 belongs to |
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| 50. |
How many moles of oxygen are present in 0.40L sample of the gas at a pressure of 760mm of Hg at a temperature of 300K. ( R= 8.31kPaLK-1mol-1) The density of certain gaseous oxide at 1.5 bar pressure at 100C is same as that dioxygen at 200C and 4.5 bar pressure. Calculate the molar mass of gaseous oxide. (Molar mass of oxygen is 32gmol-1). |
| Answer» How many moles of oxygen are present in 0.40L sample of the gas at a pressure of 760mm of Hg at a temperature of 300K. ( R= 8.31kPaLK-1mol-1) The density of certain gaseous oxide at 1.5 bar pressure at 100C is same as that dioxygen at 200C and 4.5 bar pressure. Calculate the molar mass of gaseous oxide. (Molar mass of oxygen is 32gmol-1). | |