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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. |
51 Oxidation state of n in nh4no3 ? |
| Answer» 51 Oxidation state of n in nh4no3 ? | |
| 2. |
Which of the following compounds has the largest equilibrium constant for the addition of water? |
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Answer» Which of the following compounds has the largest equilibrium constant for the addition of water? |
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| 3. |
What is the relation between the radius of circle 'r' and side of the square 'a' in this figure? If x∗r=a, type x. ___ |
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Answer» What is the relation between the radius of circle 'r' and side of the square 'a' in this figure?
If x∗r=a, type x. |
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| 4. |
17. If the weight of metal oxide is x g containing y g of oxygen, the equivalent weight of metal will be |
| Answer» 17. If the weight of metal oxide is x g containing y g of oxygen, the equivalent weight of metal will be | |
| 5. |
which of the following elements has maximum density of nucleus>' n nt1. K (19, 39) n nt2. Al (13, 27) n nt3. He (2, 4) n nt4. ALL |
| Answer» which of the following elements has maximum density of nucleus>' n nt1. K (19, 39) n nt2. Al (13, 27) n nt3. He (2, 4) n nt4. ALL | |
| 6. |
Find out the simplest formula of the compound, if one of the X atoms is missing from a corner in each unit cell in a face centered lattice of X and Y, X atoms are present at the corners while Y atoms are at face centers? |
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Answer» Find out the simplest formula of the compound, if one of the X atoms is missing from a corner in each unit cell in a face centered lattice of X and Y, X atoms are present at the corners while Y atoms are at face centers? |
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| 7. |
A body travels 20 cm in the first0.2 seconds and 22 cm in the next 0.4 seconds what will be the velocity at the end of the point 0.7th second from the start |
| Answer» A body travels 20 cm in the first0.2 seconds and 22 cm in the next 0.4 seconds what will be the velocity at the end of the point 0.7th second from the start | |
| 8. |
A hole is made at the bottom of a large vessel open at the top. If water is filled to a height h, it drains out completelly in time t. The time taken by the water column of height 2h to drain completely is. |
| Answer» A hole is made at the bottom of a large vessel open at the top. If water is filled to a height h, it drains out completelly in time t. The time taken by the water column of height 2h to drain completely is. | |
| 9. |
How to identify geometrical isomerism |
| Answer» How to identify geometrical isomerism | |
| 10. |
14. Calculate mass of anhydrous HCl in 5ml HCl solution with density 1.19g/ml containing 37.23% HCl by wt |
| Answer» 14. Calculate mass of anhydrous HCl in 5ml HCl solution with density 1.19g/ml containing 37.23% HCl by wt | |
| 11. |
Four charges each equal to Q are placed at the four corners of the square and a charge q is placed at the centre of the square. If system is in equilibrium then value of q is |
| Answer» Four charges each equal to Q are placed at the four corners of the square and a charge q is placed at the centre of the square. If system is in equilibrium then value of q is | |
| 12. |
20ml of 0.2M Al2(SO4)3 is mixed with 20 ml of 6.6M BaCl2, the concentration of Cl- ion in the solution is? |
| Answer» 20ml of 0.2M Al2(SO4)3 is mixed with 20 ml of 6.6M BaCl2, the concentration of Cl- ion in the solution is? | |
| 13. |
In the given SN2 reaction rate is fastest, when (X) is: |
Answer»  In the given SN2 reaction rate is fastest, when (X) is: |
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| 14. |
nt ntt ntttMolarity of H2SO4solution having density 1g/mL is 1.10 m. The molarity of H+ion will bentnn ntnttntttnttttntttttnttttnttttt ntttttt1 Mnttttntttntttnttttntttttnttttnttttt ntttttt2 Mnttttntttntttnttttntttttnttttnttttt ntttttt3 Mnttttntttntttnttttntttttnttttnttttt ntttttt1.5 Mnttttntttnttntnn ntn |
| Answer» nt ntt ntttMolarity of H2SO4solution having density 1g/mL is 1.10 m. The molarity of H+ion will bentnn ntnttntttnttttntttttnttttnttttt ntttttt1 Mnttttntttntttnttttntttttnttttnttttt ntttttt2 Mnttttntttntttnttttntttttnttttnttttt ntttttt3 Mnttttntttntttnttttntttttnttttnttttt ntttttt1.5 Mnttttntttnttntnn ntn | |
| 15. |
Vanadium (II) oxide is a strong |
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Answer» Vanadium (II) oxide is a strong |
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| 16. |
Ionic radii are |
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Answer» Ionic radii are |
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| 17. |
A precipitate of mixture of AgClk and AgBr weighs 0.4066 g. On heating in a current of chlorine, AgBr is converterd to AgCl and the loss in mass is 0.0725 g. Find the percentage of chlorine in the original sample |
| Answer» A precipitate of mixture of AgClk and AgBr weighs 0.4066 g. On heating in a current of chlorine, AgBr is converterd to AgCl and the loss in mass is 0.0725 g. Find the percentage of chlorine in the original sample | |
| 18. |
Give one method for industrial preparation and one for laboratory preparation of CO and CO2 each. |
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Answer» Give one method for industrial preparation and one for laboratory preparation of CO and CO2 each. |
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| 19. |
Which of the following statements is incorrect 1) NaHCO3 on heating gives NA2CO3 2) pure sodium metal dissolves in liquid ammonia to give blue solution 3) NaOH reacts with glass to give sodium silicate 4) Aluminium reacts with excess NaOH to give Al(OH)3 |
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Answer» Which of the following statements is incorrect 1) NaHCO3 on heating gives NA2CO3 2) pure sodium metal dissolves in liquid ammonia to give blue solution 3) NaOH reacts with glass to give sodium silicate 4) Aluminium reacts with excess NaOH to give Al(OH)3 |
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| 20. |
Enthalpy for the reaction C+O2→CO2 is |
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Answer» Enthalpy for the reaction C+O2→CO2 is |
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| 21. |
Proteins can be classified into two types on the basis of their molecular shape, i.e., fibrous proteins and globular proteins. Examples of globular proteins are (a) insulin (b) Keratin (c) albumin (d) myosin |
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Answer» Proteins can be classified into two types on the basis of their molecular shape, i.e., fibrous proteins and globular proteins. Examples of globular proteins are |
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| 22. |
Which reagent cannot be used to prepare an alkyl chloride from an alcohol? |
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Answer» Which reagent cannot be used to prepare an alkyl chloride from an alcohol? |
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| 23. |
Consider various species generated when H3PO4 is dissolved in water. According to the Bronsted Lowry’s Concept among these, the conjugate acid of HPO2−4 is : |
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Answer» Consider various species generated when H3PO4 is dissolved in water. According to the Bronsted Lowry’s Concept among these, the conjugate acid of HPO2−4 is : |
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| 24. |
What is the equivalent mass of carnallite |
| Answer» What is the equivalent mass of carnallite | |
| 25. |
What are the different oxidation states exhibited by lanthanoids? |
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Answer» What are the different oxidation states exhibited by lanthanoids? |
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| 26. |
The ore having two different metal atoms in its empirical formula form? |
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Answer» The ore having two different metal atoms in its empirical formula form? |
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| 27. |
Is li's size bigger than cl's size,if yes then how?Because,cl has another 3 shells whereas li has only 2 shells? |
| Answer» Is li's size bigger than cl's size,if yes then how?Because,cl has another 3 shells whereas li has only 2 shells? | |
| 28. |
82. Hydrogen has only one orbit so how does electron move from ground state to excited state? |
| Answer» 82. Hydrogen has only one orbit so how does electron move from ground state to excited state? | |
| 29. |
24. What is the gram equivalent mass of Na2CO3 in- a) Na2CO3 + 2HCl= 2NaCl +H2O b) Na2CO3 + HCl = Nacl + NaHCO3 |
| Answer» 24. What is the gram equivalent mass of Na2CO3 in- a) Na2CO3 + 2HCl= 2NaCl +H2O b) Na2CO3 + HCl = Nacl + NaHCO3 | |
| 30. |
How are colloids classified on the basis of (i) Physical states of components (ii) Nature of dispersion medium and (iii) Interaction between dispersed phase and dispersion medium? |
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Answer» How are colloids
(i) Physical
(ii) Nature of
(iii) Interaction
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| 31. |
Largest no of bond pair will be in1)30g C2H62)24g C2H23)14g H24)44g CO2 |
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Answer» Largest no of bond pair will be in 1)30g C2H6 2)24g C2H2 3)14g H2 4)44g CO2 |
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| 32. |
At the same temperature and pressure, which of the following gas has the highest kinetic energy : |
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Answer» At the same temperature and pressure, which of the following gas has the highest kinetic energy : |
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| 33. |
The enol form of acetone, after treatment with D2O, gives rise to: |
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Answer» The enol form of acetone, after treatment with D2O, gives rise to: |
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| 34. |
The photoelectric threshold wavelength of silver is 3250×10−10 m. The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength 2536×10−10 m is |
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Answer» The photoelectric threshold wavelength of silver is 3250×10−10 m. The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength 2536×10−10 m is |
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| 35. |
Why concentrations of pure solids and liquids taken to be Unity in case of equilibrium constant? |
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Answer» Why concentrations of pure solids and liquids taken to be Unity in case of equilibrium constant? |
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| 36. |
What is meant by charging of capacitors? |
| Answer» What is meant by charging of capacitors? | |
| 37. |
1. 2 nitrobenzoic acid and 2 methylbenzoic acid which one more acidic (ortho effect using) explaine |
| Answer» 1. 2 nitrobenzoic acid and 2 methylbenzoic acid which one more acidic (ortho effect using) explaine | |
| 38. |
What would be conductivity of MX2 if conductivity of X- and M2+is 5 ohm−1cm2 mol−1 and 6 ohm−1cm2 mol−1 respectively? |
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Answer» What would be conductivity of MX2 if conductivity of X- and M2+is 5 ohm−1cm2 mol−1 and 6 ohm−1cm2 mol−1 respectively? |
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| 39. |
Find the number of electrons present in a pure sample of MgSO4.7H2O containing 5.5 moles of oxygen atoms?(Take Avogadro's number (NA)=6×1023) |
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Answer» Find the number of electrons present in a pure sample of MgSO4.7H2O containing 5.5 moles of oxygen atoms? |
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| 40. |
ifA is the void set\varnothing then P(A) has just one element \varnothing that is P(\varnothing)=\{\varnothing\}, show that n\{P\{P\{P(P(\varnothing))\}=4 |
| Answer» ifA is the void set\varnothing then P(A) has just one element \varnothing that is P(\varnothing)=\{\varnothing\}, show that n\{P\{P\{P(P(\varnothing))\}=4 | |
| 41. |
38. Electrophilic aromatic substitution in napthalene,which position is more electrophilic? |
| Answer» 38. Electrophilic aromatic substitution in napthalene,which position is more electrophilic? | |
| 42. |
A 5 M solution is diluted from 1 litre to a volume of hundred litres, the normality of a solution will be?? |
| Answer» A 5 M solution is diluted from 1 litre to a volume of hundred litres, the normality of a solution will be?? | |
| 43. |
P4+3 NaOH+3 H2O→ PH3+3 NaH2PO2The equivalent mass of p4 in the above reaction is \lbrack M is the molecular mass of P4\rbrack |
| Answer» P4+3 NaOH+3 H2O→ PH3+3 NaH2PO2The equivalent mass of p4 in the above reaction is \lbrack M is the molecular mass of P4\rbrack | |
| 44. |
The complexes given below are: |
Answer» The complexes given below are: |
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| 45. |
The addition of HCl to vinyl chloride gives 1,1-dichloroethane because of? |
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Answer» The addition of HCl to vinyl chloride gives 1,1-dichloroethane because of?
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| 46. |
16 kg oxygen gas expands at STP (1 atm) isobarically to occupy double of its original volume. The work done during the process is nearly |
| Answer» 16 kg oxygen gas expands at STP (1 atm) isobarically to occupy double of its original volume. The work done during the process is nearly | |
| 47. |
The following is reaction is an example of: 2UO+2+4H→U4++UO2+2+2H2O |
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Answer» The following is reaction is an example of: 2UO+2+4H→U4++UO2+2+2H2O |
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| 48. |
What is the n-factor of NH3 in heber prosses |
| Answer» What is the n-factor of NH3 in heber prosses | |
| 49. |
How to calculate radius ratio of TETRAHEDRAL void |
| Answer» How to calculate radius ratio of TETRAHEDRAL void | |
| 50. |
In an experiment to measure the pH values by using a universal indicator, a student found that the pH values of four given solutions A, B, C and D are 10, 6, 2 and 14 respectively. The solution which will require the maximum volume of sodium hydroxide solution for complete neutralisation is solution :(1) A(2) B(3) C(4) D |
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Answer» In an experiment to measure the pH values by using a universal indicator, a student found that the pH values of four given solutions A, B, C and D are 10, 6, 2 and 14 respectively. The solution which will require the maximum volume of sodium hydroxide solution for complete neutralisation is solution : (1) A (2) B (3) C (4) D |
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