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Identification of Bacteria - Section 1 Multiple Questions and Answers.
| 6. | The primary stain of Gram's method is? | ||
| A. | Safranin | ||
| B. | Phenolpthalene | ||
| C. | Crystal violet | ||
| D. | Methyl red | ||
| 7. | At what concentration of sulphuric acid, Nocardia resists decolorization? | ||
| A. | 0.5% sulphuric acid | ||
| B. | 5% sulphuric acid | ||
| C. | 10% sulphuric acid | ||
| D. | 8% sulphuric acid | ||
| 8. | Which of the following is commonly used as Gram's decolorizer? | ||
| A. | Ethyl alcohol | ||
| B. | Methyl alcohol | ||
| C. | Acetone | ||
| D. | A mixture of ethyl alcohol and acetone | ||
| 9. | Production of acetoin can be detected by which of the following tests? | ||
| A. | Citrate test | ||
| B. | Voges-Proskauer test | ||
| C. | Methyl red test | ||
| D. | Indole test | ||
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