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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. |
What is the use of law of Multiple Proportion? |
| Answer» What is the use of law of Multiple Proportion? | |
| 2. |
In an experiment it is found that 2.0769g of pure x products 3.6769g of pure x2o5. Find the number of moles of x? |
| Answer» In an experiment it is found that 2.0769g of pure x products 3.6769g of pure x2o5. Find the number of moles of x? | |
| 3. |
is NH3 a molecular solid or network solid? |
| Answer» is NH3 a molecular solid or network solid? | |
| 4. |
Describe in your own words, what happens to the particles when salt dissolve in water. |
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Answer» Describe in your own words, what happens to the particles when salt dissolve in water. |
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| 5. |
Ionisation energy ___ down a group. |
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Answer» Ionisation energy |
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| 6. |
what is dyad and triad system in tautomerism ? |
| Answer» what is dyad and triad system in tautomerism ? | |
| 7. |
28. A mixture of NaI and NaCl when heated with excess of H2SO4 produced same weight of sodium sulphate as that of original mixture. Calculate the percentage of NaI in mixture. |
| Answer» 28. A mixture of NaI and NaCl when heated with excess of H2SO4 produced same weight of sodium sulphate as that of original mixture. Calculate the percentage of NaI in mixture. | |
| 8. |
Formation of anode rays led to the discovery of............... __ |
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Answer» Formation of anode rays led to the discovery of............... |
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| 9. |
Assertion: Aluminium foil can be used in α - particle scattering experiment Reason: Aluminium is a highly malleable metal. |
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Answer» Assertion: Aluminium foil can be used in α - particle scattering experiment |
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| 10. |
on heating 3.526 g of hydrated BaCl2 to dryness 3.010g of anhydrous salt remained .Hence the formula of the hydrate is |
| Answer» on heating 3.526 g of hydrated BaCl2 to dryness 3.010g of anhydrous salt remained .Hence the formula of the hydrate is | |
| 11. |
Which group does Hydrogen belong to? |
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Answer» Which group does Hydrogen belong to? |
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| 12. |
Mercury + sulphuric acid → No reaction. This is because: |
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Answer» Mercury + sulphuric acid → No reaction. This is because: |
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| 13. |
0.157g of a certain gas collected over water occupies a volume of 135ml at 27^° c and 750mm of Hg .asuming ideal behaviour the molecular weight of the gas is(aquous tension at 27^° c is 26.7mm of Hg) |
| Answer» 0.157g of a certain gas collected over water occupies a volume of 135ml at 27^° c and 750mm of Hg .asuming ideal behaviour the molecular weight of the gas is(aquous tension at 27^° c is 26.7mm of Hg) | |
| 14. |
A radioactive nucleus is being produced at a constant rate α per second. Its decay constant is λ. If N_0 are the number of nuclei at time t=0, then maximum number of nuclei possible are:- |
| Answer» A radioactive nucleus is being produced at a constant rate α per second. Its decay constant is λ. If N_0 are the number of nuclei at time t=0, then maximum number of nuclei possible are:- | |
| 15. |
What amount of water. Should be added to 150 g of 20% (w/w) aqueous sugar solution to make its concentration 5%(w/w) ? |
| Answer» What amount of water. Should be added to 150 g of 20% (w/w) aqueous sugar solution to make its concentration 5%(w/w) ? | |
| 16. |
Find the ratio of velocities of proton and alpha particle if the de Broglie wavelength of both the particles is same |
| Answer» Find the ratio of velocities of proton and alpha particle if the de Broglie wavelength of both the particles is same | |
| 17. |
26. What is equivalent conductance |
| Answer» 26. What is equivalent conductance | |
| 18. |
Question 3 The property to flow in unique to fluids, Which one of the following statements Is correct? (a) Only gases behave like fluids (b) Gases and solids behave like fluids (c) Gases and liquids behave like fluids (d) Only liquids are fluids |
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Answer» Question 3 The property to flow in unique to fluids, Which one of the following statements Is correct? (a) Only gases behave like fluids (b) Gases and solids behave like fluids (c) Gases and liquids behave like fluids (d) Only liquids are fluids |
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| 19. |
In Br how many protons and neutrons are present? write it's electronic configuration and valency |
| Answer» In Br how many protons and neutrons are present? write it's electronic configuration and valency | |
| 20. |
Calculate the formal charge on Cl atom in HCIO4. |
| Answer» Calculate the formal charge on Cl atom in HCIO4. | |
| 21. |
Which amongst the following is the unsaturated carbon compound? |
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Answer» Which amongst the following is the unsaturated carbon compound? |
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| 22. |
Name the physical state of matter which can be easily compressed. |
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Answer» Name the physical state of matter which can be easily compressed. |
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| 23. |
if the valency is 2 then what will be the formula of copper oxide ? and why? |
| Answer» if the valency is 2 then what will be the formula of copper oxide ? and why? | |
| 24. |
The metal and non-metal that are liquid at room temperature are ____________ and __________ respectively. |
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Answer» The metal and non-metal that are liquid at room temperature are ____________ and __________ respectively. |
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| 25. |
Moles of O2(g) produced on complete decomposition of 1.5 mole of KClO3,is2KClO3-----------2KCl+3O2 |
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Answer» Moles of O2(g) produced on complete decomposition of 1.5 mole of KClO3,is 2KClO3-----------2KCl+3O2 |
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| 26. |
Match the number of neutrons for the given atoms. |
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Answer» Match the number of neutrons for the given atoms. |
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| 27. |
Acidulated water decomposes when subjected to ___. |
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Answer» Acidulated water decomposes when subjected to ___. |
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| 28. |
what is a colloid? |
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Answer» what is a colloid? |
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| 29. |
Calculate the amount of ice that would separate out on cooling a solution containing 50g of ethylene glycol in 200g of water to -9.3^°C(Kf for water = 1.86K/molal) |
| Answer» Calculate the amount of ice that would separate out on cooling a solution containing 50g of ethylene glycol in 200g of water to -9.3^°C(Kf for water = 1.86K/molal) | |
| 30. |
Nitric oxide gas at 2.0 atm. and oxygen gas at 1 atm are injected simultaneously through pinhole of identicalarea of cross section at the opposite end of a circular glass tube. The length of tube is 1.0 m and gases arekept at same temperature. Determine the distance from O end at which first flash of shown fume would beobserved(1) 0.11 m(2) 0.33 m(3) 0.85 m(4) 0.67 m |
| Answer» Nitric oxide gas at 2.0 atm. and oxygen gas at 1 atm are injected simultaneously through pinhole of identicalarea of cross section at the opposite end of a circular glass tube. The length of tube is 1.0 m and gases arekept at same temperature. Determine the distance from O end at which first flash of shown fume would beobserved(1) 0.11 m(2) 0.33 m(3) 0.85 m(4) 0.67 m | |
| 31. |
Boiling point of inert gas due to? |
| Answer» Boiling point of inert gas due to? | |
| 32. |
Why there is an attractive force between particles of atoms?Why a repulsive force does not exists between them? |
| Answer» Why there is an attractive force between particles of atoms?Why a repulsive force does not exists between them? | |
| 33. |
Which of the following aqueous solutions has highest freezing point (assuming m=M)?(1)0.1M KNO3(2)0.2M Na3PO4(3)0.25M FeCl3(4)0.01M Na2SO4 |
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Answer» Which of the following aqueous solutions has highest freezing point (assuming m=M)? (1)0.1M KNO3 (2)0.2M Na3PO4 (3)0.25M FeCl3 (4)0.01M Na2SO4 |
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| 34. |
ntTitanium crystallize in a fcc .It react with C or H interstitially by allowing atoms of these elements of these elements to occupy holes in host lattice .H2 occupies tetrahedral holes and C OCCUPY octahedral holes .formula of titaium carbide and titanium hydridearen |
| Answer» ntTitanium crystallize in a fcc .It react with C or H interstitially by allowing atoms of these elements of these elements to occupy holes in host lattice .H2 occupies tetrahedral holes and C OCCUPY octahedral holes .formula of titaium carbide and titanium hydridearen | |
| 35. |
If m and m' are moving mass and rest mass of a body and c is velocity of light then find KE of the body.Explain |
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Answer» If m and m' are moving mass and rest mass of a body and c is velocity of light then find KE of the body. Explain |
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| 36. |
Which of the following can act as both reducing and oxidizing agent? |
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Answer» Which of the following can act as both reducing and oxidizing agent? |
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| 37. |
Which of the following pairs does not contain unsaturated hydrocarbons? |
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Answer» Which of the following pairs does not contain unsaturated hydrocarbons? |
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| 38. |
Hydrochloric acid is added to a glass container containing water and blue litmus solution. The colour of the blue litmus solutions turns into |
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Answer» Hydrochloric acid is added to a glass container containing water and blue litmus solution. The colour of the blue litmus solutions turns into |
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| 39. |
Which of the following property is generally not shown by metals?(a) Electrical conduction(b) Sonorous in nature(c) Dullness(d) Ductility |
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Answer» Which of the following property is generally not shown by metals? (a) Electrical conduction (b) Sonorous in nature (c) Dullness (d) Ductility |
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| 40. |
If temperature and volume ofcontainer are same, thepressureofa gas obeying vanderWaals equation is (1)Smaller than that of an ideal gas (2)Larger than that ofan ideal gas (3)Same as that of ani deal gas (4)Cant predict |
| Answer» If temperature and volume ofcontainer are same, thepressureofa gas obeying vanderWaals equation is (1)Smaller than that of an ideal gas (2)Larger than that ofan ideal gas (3)Same as that of ani deal gas (4)Cant predict | |
| 41. |
Show that the tangential component ofelectrostatic field is continuous from one side ofa charged surface to another. also show that normal component of electrostatic field has discontinuity from one side of charged surface to anoth |
| Answer» Show that the tangential component ofelectrostatic field is continuous from one side ofa charged surface to another. also show that normal component of electrostatic field has discontinuity from one side of charged surface to anoth | |
| 42. |
X is an ionic compound containing only magnesium, aluminium and oxygen. Which of the following can be the formula of X? |
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Answer» X is an ionic compound containing only magnesium, aluminium and oxygen. Which of the following can be the formula of X? |
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| 43. |
Write a brief note on isotopes of carbon. |
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Answer» Write a brief note on isotopes of carbon. |
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| 44. |
What is the term used for converting dead vegetation into coal? |
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Answer» What is the term used for converting dead vegetation into coal? |
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| 45. |
How to find out which molecule has more surface area? |
| Answer» How to find out which molecule has more surface area? | |
| 46. |
Which of the following reaction involves a chemical change? |
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Answer» Which of the following reaction involves a chemical change? |
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| 47. |
What specific name is given to 'the number of hydrogen atoms that can combine with or be displaced by one atom of an element'? Is this a modern definition? |
| Answer» What specific name is given to 'the number of hydrogen atoms that can combine with or be displaced by one atom of an element'? Is this a modern definition? | |
| 48. |
10. why primary alkyl halide only undergoe elimination type 2 not E1 reaction. |
| Answer» 10. why primary alkyl halide only undergoe elimination type 2 not E1 reaction. | |
| 49. |
Why boron is considered as non metal since it has three electrons in its valence shell so it can easily lose the electron to acquire the noble gas configuration?? |
| Answer» Why boron is considered as non metal since it has three electrons in its valence shell so it can easily lose the electron to acquire the noble gas configuration?? | |
| 50. |
Question 3 An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be: a) Calcium b) Carbon c) Silicon d) Iron |
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Answer» Question 3 An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be: a) Calcium b) Carbon c) Silicon d) Iron |
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