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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. |
When a solid changes to directly gaseous state, the process is calledA) Diffusion B) Sublimation C) Evaporation D) Boiling |
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Answer» B) Sublimation |
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| 2. |
MixturePath of the lightSettle down of soluteXvisibleyesYnot visiblenoX and Y are A) suspension and solution B) suspension and colloidC) solution and suspension D) colloid and suspension |
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Answer» A) suspension and solution |
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| 3. |
Petroleum is separated into its components byA) distillation B) fractional distillation C) evaporation D) filtration |
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Answer» B) fractional distillation |
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| 4. |
Copper cannot be separated from copper sulphate by physical methods. So, it is A) mixture B) compound C) A or B D) colloid |
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Answer» Correct option is B) compound |
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| 5. |
i) Hydrogenp) Suspensionii) Waterq) Solutioniii) Lemonader) Elementiv) Cough Syrups) CompoundChoose the correct matching. A) i – r, ii – s, iii – q, iv – p B) i – s, ii – q, iii – p, iv – r C) i – q, ii – p, iii – r, iv – s D) i – p, ii – r, iii – s, iv – q |
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Answer» A) i – r, ii – s, iii – q, iv – p |
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| 6. |
Naphthalene in water separated by ……………. A) distillation B) chromatography C) sublimation D) centrifugation |
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Answer» C) sublimation |
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| 7. |
a) sugar water b) tincture of iodine c) soda water d) salt waterThe above given mixtures are A) Homogeneous mixturesB) Heterogeneous mixtures C) Solutions D) A and C |
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Answer» Correct option is D) A and C |
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| 8. |
Which of the following cannot be separated by sublimation when it is mixed with Sand A) Salt B) Ammonium Chloride C) Camphor D) Iodine |
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Answer» Correct option is A) Salt |
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| 9. |
Kerosene and Caster oil are immisible liquids. To separate kerosene from caster oil …………… is used typeA) Filter paperB) Funnel C) Separating funnel D) Distillation apparatus |
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Answer» D) Distillation apparatus |
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| 10. |
A) kerosene + salt B) water + salt C) water + sugar D) salt + sugarIn the above mixtures, heterogeneous is /are A) B, C B) A, B, C C) A D) A, D |
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Answer» Correct option is D) A, D |
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