Gk Questions with AnswersChemistry Quiz Questions and Answers
| 17. | The IUPAC name of formaldehyde is | ||
|---|---|---|---|
| A. Ethanol | |||
| B. Propanal | |||
| C. Acetone | |||
| D. Methanol | |||
| Answer | ||
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| 18. | Which has maximum calorific value? | ||
|---|---|---|---|
| A. Fat | |||
| B. Amino acid | |||
| C. Carbohydrate | |||
| D. Protein | |||
| Answer | ||
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| 19. | Alum is used as | ||
|---|---|---|---|
| A. A disinfectant | |||
| B. A purifier for water | |||
| C. A fertilizer | |||
| D. An analgesic | |||
| Answer | ||
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| 20. | Mildness of shaving cream is enriched by which one of the following? | ||
|---|---|---|---|
| A. Free fatty acid | |||
| B. Potassium carbonate | |||
| C. Sodium silicate | |||
| D. Sodium chloride | |||
| Answer | ||
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