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 metal can be obtained by the electrolysis of the aqueous solution of their salts ?A. CuB. NaC. MgD. K |
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Answer» Correct Answer - A Copper metal (Cu) is obtained by the electrolysis of the aqueous solution of their salts . |
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| 2. |
Blister copper isA. impure CuB. Cu alloyC. pure CuD. Cu having 1% impurity |
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Answer» Correct Answer - D Blister copper is a copper containing about 98 to 99% pure copper and 1 to 2% impurities like Ag, Au, Zn, Ni, etc. |
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| 3. |
Which one of the following metal , is extraced on smelting of its ore in blast furnance ?A. ironB. SodiumC. PotassiumD. magnesium |
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Answer» Correct Answer - A When smelting is done in a blast furnance the metal extracted is iron which is shown by the following reaction . `Fe_(2)O_(3) +3C overset( gt 1123K)to 2Fe+3CO` `Fe_(2)O_(3)+3CO overset(1123K)to 2Fe+3CO_(2)` |
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| 4. |
Which of the following metals is extracted by the electrometallurgical method?A. CuB. FeC. NaD. Ag |
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Answer» Correct Answer - B Fe is not extracted by electrometallurgical method. |
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| 5. |
Haematite is reduced in a blast furnance byA. COB. `CO_2`C. `SO_2`D. `C` |
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Answer» Correct Answer - A In blast furnance , following reaction occurs `3Fe_(2)O_(3) +CO overset(300-400^(@)C)to 2Fe_(3)O_(4)+CO_(2)` `Fe_(3)O_(4) +4CO overset(500-600^(@)C)to 3FeO+4CO+(1)/(4)O_(2)` `FeO+CO overset(700^(@)C)to Fe+CO_(2) ` |
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| 6. |
In the metallurgy of Fe, when `CaCo_(3)` is added to blast furnace, calcicum ion appears asA. slagB. gangueC. CaOD. metallic Ca |
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Answer» Correct Answer - A In the metallurgy of iron , when `CaCO_(3)` is added to blast furnance. It removes impurities from ore and forms slag `(CaSiO_(3))`. |
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| 7. |
Which reaction does not occurs in the blast furnace in the metallurgy of Fe(a) CaO + SiO2 → CaSiO3 (b) Fe2O3 + CO → Fe3O4 + CO2 (c) FeO + SiO2 → FeSiO3(d) FeO Fe + 1/2 O2(1) a & b(2) a,b & c (3) c & d (4) a, b, c, d |
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Answer» Answer:(a) CaO + SiO2 → CaSiO3 , (b) Fe2O3 + CO → Fe3O4 + CO2 |
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| 8. |
Balance the chemical equation CO2+CaSiO3+H2O=SiO2+Ca(HCO3)2 |
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Answer» 2 CO2 + CaSIO3 + H2O = SIO2 + Ca(HCO3)2 |
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| 9. |
The pyrimidine bases present in DNA areA. Cytosine and Adenine.B. Cytosine and GuanineC. Cytosine and UracilD. Cytosine and Thymine |
| Answer» Correct Answer - D | |
| 10. |
Statement-1 : For zero order kinetic `t_(1//2)` is independent of initial concentration. Statement-2 : For zero order kinetic in equal time equal amount of reactant will decompose. Statement-3 : Rate `I^(st)` order kinetic in equal time equal percentage of reactant will decompose. Statement-4 : Rate law expression of reaction may be contains concentration of reactant concentration of product and even concentration of catalyst.A. TFFFB. FTTTC. FTTFD. TFFT |
| Answer» Correct Answer - B | |
| 11. |
Consider following compounds & give number of compounds which have HOH higher than |
| Answer» Correct Answer - 7 | |
| 12. |
Amongst given compound, number of compounds which can evolve `NH_3` on reaction with `NaNH_2`. |
| Answer» Correct Answer - 6 | |
| 13. |
`BaCO_(3)(s)+AcOHunderset(Delta)overset(Na_(2)C_(2)O_(4)"Solution")rarr`? Comment on the product of this reaction.A. `BaCO_(3)` remains unaffected.B. `BaC_(2)O_(4)` will be precipitated as white precipitateC. `BA(Oac)_(2)` will be precipitated as white precipitateD. Clear solution |
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Answer» Correct Answer - D `rArr` ppt of `BaCO_(3)` and `BaC_(2)O_(4)` are soluble in `CH_(3)CO OH`. |
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| 14. |
What is the correct order of nitration of the following compounds?`{:(C_(6)H_(5)CH_(3),C_(6)H_(6),C_(6)D_(6),C_(6)T_(6),C_(6)H_(5)Br,C_(6)H_(5)overset(+)NR_(3),C_(6)H_(5)NMe_(2)),(" a"," b"," c"," d"," e"," f"," g"):}`A. `g gt a gt b gt c gt d gt e gt f`B. `g gt b gt c gt d gt e gt a gt f`C. `g gt a gt b = c = d gt e gt f`D. `g gt a gt b gt c = d gt e gt f` |
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Answer» Correct Answer - C r.d.s of nitration does not involve (C-H) bond cleavage `:. C_(6)H_(6)=C_(6)D_(6)=C_(6)T_(6)` |
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| 15. |
An ionic solid PQ crystallises in rock salt structure with density `4.0gm//cm^(3)`.If the radius of cation and anion is 83 and 167 pm respectively, then the molar mass of solid is `[N_(A)=6xx10^(23)]`A. 75 gm/`cm^(3)`B. `50gm//cm^(3)`C. `25 gm//cm^(3)`D. `150gm//cm^(3)` |
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Answer» Correct Answer - A `a=2[83+167]=500` pm `delta=(ZxxM)/(N_(A)xxa^(3)xx10^(-30))=(4xxM)/(6.02xx10^(23)xx[500]^(3)xx10^(-30))=4` M=75.25 gm / mole |
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| 16. |
In the previousd question if the length of the cylindeer is measured as `25mm` and mass of the cylinder is measured as `50.0gm` find the density of the cylinder `(gm//cm^(3))` in proper significant . |
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Answer» `rho=(m)/(pi(d^(2)//4)h)` `rho = ((50.0)gm)/(3.14xx(3.09//2)^(2)xx(25xx10^(-1))cm^(3))=2.7gm//cm^(3)` . |
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| 17. |
Fill in with a suitable word from the given choices to complete the Proverb.1. Fools rush in where …………… fear to tread. (a) devils (b) angels (c) ghosts2. Half a loaf is better than …………. (a) none (b) one (c) two (d) many3. It’s a long …………… that has no turning. (a) love (b) life (c) lane4. It takes two to make a ……………. (a) handshake (b) quarrel (c) gossip (d) conversation5. Let sleeping dogs …………. (a) sleep (b) bark (c) whine (d) lie |
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Answer» 1. (d) wise men 2. (a) none 3. (d) lap 4. (b) quarrel 5. (d) lie |
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| 18. |
Match the proverbs with their meaningsProverbsMeaningsBrevity is the soul of witMost appearances are deceptiveMake hay while the sun shinesBe short in speech and writingAll that glitters is not goldMake optimum use of the opprtunity |
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Answer» (a) (ii) Be short in speech and writing (b) (iii) Make optimum use of the opportunity (c) (i) Most appearances are deceptive |
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| 19. |
Fill in with a suitable word from the given choices to complete the Proverb.1. ………… is the mother of invention. (a) Creation (b) Necessity (c) Father (d) Husband2. One …………… doesn’t make a summer. (a) swallow (b) sparrow (c) shower (d) spring3. The road to …………… is paved with good intentions. (a) heaven (b) hell (c) highway (d) hotel4. You can’t ………… with the hare and hunt with the hounds. (a) race (b) rent (c) run (d) read5. You may lead a horse to but you cannot make him drink ………. (a) water (b) food (c) porridge (d) oatmeal |
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Answer» 1. (b) Necessity 2. (a) swallow 3. (b) hell 4. (c) run 5. (a) water |
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| 20. |
Match the proverbs with their meaningsProverbsMeaningsmanners make a manTry to read as much as possible.Reading makes a man perfectNever rush up.Haste makes wasteBe perfect and respect others. |
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Answer» (i) (c) Be pertìct and respect others. (ii) (a) Try to read as much ãs possible. (iii) (h) Never rush up. |
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| 21. |
Fill in with a suitable word from the given choices to complete the Proverb.1. When the going gets tough, the tough get …………. (a) coming (b) going (c) carried (d) safer2. I hope for the best, but ………… for the worst. (a) prepare (b) deal (c) think (d) act3. Don’t bite the hand that ……… you. (a) binds (c) feeds (b) beats (d) hurts4. One ………… turn deserves another. (a) good (b) bad (c) wrong (d) new5. While there’s life, there’s ……. (a) death (b) disappointment (c) hope (d) an end |
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Answer» 1. (b) going 2. (a) prepare 3. (c) feeds 4. (a) good 5. (c) hope |
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| 22. |
Leadership style where leader uses knowledge and past experience to reach a decision without seeking information from others is known as :1. Delegating Decision Making Style2. Directive Decision Making Style3. Facilitative Decision Making Style4. Conceptual Decision Making Style5. Analytical Decision Making Style |
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Answer» Correct Answer - Option 2 : Directive Decision Making Style Option 2 is the correct answer.
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| 23. |
___ many books on history helps school children to get knowledge about the past of different nations. A) read B) reads C) has read D) will read E) reading |
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Answer» Correct option is E) reading |
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| 24. |
There are six pillars named M,N,O,P,Q,R of different height. N is shorter than M but taller than Q. only two pillars are taller than M. R is taller than Q and O. Q is not the shortest. The one who is second shortest is 154 m . P is not the shortest pillar. If M is 19 m taller than Q then what is the height of M?A. 190 mB. 181 mC. 175mD. 173m |
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Answer» Correct Answer - D R/P gt R/Pgt MgtNgtQgtO |
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| 25. |
There are six boxes, S,T,U,X,Y and Z, each containing different amount of money in it. Box T has more money than Box Y but less than box Y. only Box Z has more money than box U. Box Y does not has the least amount of money. The box containing `3^(rd)` highest amount of money has Rs 3000, which is Rs 1000 more than the box which has `2^(nd)` lowest amount of money. Which of the following Box has the least amount money ?A. SB. TC. UD. Y |
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Answer» Correct Answer - A ZgtUgtX (Rs 3000) gtTgtYgt(Rs 2000) gtS |
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| 26. |
There are six boxes, S,T,U,X,Y and Z, each containing different amount of money in it. Box T has more money than Box Y but less than box Y. only Box Z has more money than box U. Box Y does not has the least amount of money. The box containing `3^(rd)` highest amount of money has Rs 3000, which is Rs 1000 more than the box which has `2^(nd)` lowest amount of money. What may be the amount of money in Box U ?A. Rs . 2500B. Rs 2000C. Rs , 3500D. Rs 2250 |
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Answer» Correct Answer - C ZgtUgtX (Rs 3000) gtTgtYgt(Rs 2000) gtS |
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| 27. |
There are six boxes, S,T,U,X,Y and Z, each containing different amount of money in it. Box T has more money than Box Y but less than box Y. only Box Z has more money than box U. Box Y does not has the least amount of money. The box containing `3^(rd)` highest amount of money has Rs 3000, which is Rs 1000 more than the box which has `2^(nd)` lowest amount of money. What may be the amount of money in Box T, if it has Rs . 250 less than the box X ?A. Rs . 2500B. Rs 2750C. Rs , 3500D. Rs 3250 |
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Answer» Correct Answer - B ZgtUgtX (Rs 3000) gtTgtYgt(Rs 2000) gtS |
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| 28. |
There are six boxes, S,T,U,X,Y and Z, each containing different amount of money in it. Box T has more money than Box Y but less than box Y. only Box Z has more money than box U. Box Y does not has the least amount of money. The box containing `3^(rd)` highest amount of money has Rs 3000, which is Rs 1000 more than the box which has `2^(nd)` lowest amount of money. Which of the following is true regarding box X ?A. Only Box S has less money than Box XB. Box T has more money than Box XC. Box X has `3^(rd)` highest amount of moneyD. Box Y has more amount of money than X |
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Answer» Correct Answer - C ZgtUgtX (Rs 3000) gtTgtYgt(Rs 2000) gtS |
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| 29. |
There are six pillars named M,N,O,P,Q,R of different height. N is shorter than M but taller than Q. only two pillars are taller than M. R is taller than Q and O. Q is not the shortest. The one who is second shortest is 154 m . P is not the shortest pillar. If P is 181 m than which of the following is true I. Only one pillar is taller than P II. The difference between the heights of P and Q is 27 m III. O is the shortest Pillars.A. only IB. only II and IC. All are trueD. Only III and II |
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Answer» Correct Answer - D R/P gt R/Pgt MgtNgtQgtO |
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| 30. |
There are six Electric poles all are of different height. T is taller than M and N shorter than R. The one who is third shortest is 102 cm in height. X is taller than T. R is not the tallest . The one who is second tallest is 119 cm in height . M is not the shortest among all. Y is taller than N Who among the following is the second tallest ?A. YB. RC. TD. M |
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Answer» Correct Answer - B XgtRgtTgtYgtMgtN |
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| 31. |
There are six pillars named M,N,O,P,Q,R of different height. N is shorter than M but taller than Q. only two pillars are taller than M. R is taller than Q and O. Q is not the shortest. The one who is second shortest is 154 m . P is not the shortest pillar. How many pillars are shorter than N ?A. OneB. TwoC. NoneD. three |
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Answer» Correct Answer - B R/P gt R/Pgt MgtNgtQgtO |
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| 32. |
There are six Electric poles all are of different height. T is taller than M and N shorter than R. The one who is third shortest is 102 cm in height. X is taller than T. R is not the tallest . The one who is second tallest is 119 cm in height. Neither T nor M is the third shortest person among all . M is not the shortest among all. Y is taller than N What will be the possible height of T ?A. 120 cmB. 100 cmC. 112 cmD. 101 cm |
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Answer» Correct Answer - C XgtRgtTgtYgtMgtN |
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| 33. |
There are six Electric poles all are of different height. T is taller than M and N shorter than R. The one who is third shortest is 102 cm in height. X is taller than T. R is not the tallest . The one who is second tallest is 119 cm in height. Neither T nor M is the third shortest person among all . M is not the shortest among all. Y is taller than N Who among the following is third shortest ?A. TB. MC. XD. Y |
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Answer» Correct Answer - D XgtRgtTgtYgtMgtN |
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| 34. |
As well as ___ I like ___ . A) running/walking B) run/walk C) run/walked D) running/walked E) run/to walk |
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Answer» Correct option is A) running/walking |
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| 35. |
I don’t mind ___ . A) to walk B) be walking C) walking D) having been walked E) to have walked |
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Answer» Correct option is C) walking |
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| 36. |
If you are lost in a snow storm it’s best ___ a hole and sit in it until it stops ___ . A) digging / snowing B) dig / snowed C) to dig / snowed D) digging / snowed E) to dig / snowing |
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Answer» Correct option is E) to dig / snowing |
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| 37. |
Eggplants, violets and blueberry ice cream are all ___ |
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Answer» Correct answer is purple |
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| 38. |
What color stands out the most? |
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Answer» Correct answer is yellow |
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| 39. |
Which of the following image file format will you choose for animation? a) .jpg b) .tiff c) .gif d) .psd |
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Answer» Correct option: c) .gif |
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| 40. |
Hazel eyes are light ___ |
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Answer» Correct answer is red, yellow, green |
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| 41. |
The opposite of black is usually ___ |
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Answer» Correct answer is white |
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| 42. |
Roses are red, violets are ___ |
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Answer» Correct answer is blue |
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| 43. |
________preserves the hue and saturation of the base layer. a. Blending b. Tint Mode c. Exclusion d. Luminosity |
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Answer» Correct answer is d. Luminosity |
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| 44. |
How many primary colors are there? |
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Answer» Correct answer is five |
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| 45. |
What Vegetable?___ come is many colors and different strengths of hotness? |
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Answer» Correct answer is Peppers |
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| 46. |
How many colors are there in a rainbow? |
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Answer» Correct answer is seven |
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| 47. |
If a color is made lighter by adding white, the result is called a ____________. a. Shade b. Tone c. Tint d. Hue |
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Answer» Correct answer is c. Tint |
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| 48. |
What can be done to improve access to electricity in developing countries? |
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Answer» A number of countries have made clear progress on expanding electricity access in recent years – and there are common factors among this group. These include sustained political commitment and financing, enabling policies and incentives, strong institutions, and the right balance of grid and off-grid. |
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| 49. |
Which is a ‘Kharif ’crop? a. Maize b. Wheat c. Barley d. Mustard |
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Answer» Correct option: a. Maize |
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| 50. |
Which of the following is not a sign of stress? a) Fatigue b) Sleeplessness c) Sadness d) confident |
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Answer» Correct answer is d) confident |
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