- Phenol & naphthalene
- Benzol & pitch
- Anthracene & creosote
- None of these
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Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because?
Answer: Option 3 Let'
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When the mixture to be distilled has a very high boiling point and the product material is heat sensitive, the separation technique to be used is __________ distillation.?
Answer: Option 2 Let'
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Directions : In each of the following questions a statement is given, followed by two conclusions. Give answer : Statement : "Use our product to improve memory of your child. It is based on natural herbs and has no harmful side effects." - An advertisement of a pharmaceutical company. Assumptions : I. People generally opt for a medical product which is useful and has no harmful side effects. II. Improving memory of child is considered as important by many parents.?
Answer: Option 5 An advertisement highlights only those features of a product, which are liked by people and are also desirable. So, both I and II are implicit.
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Directions : Each of the following question consists of a statement followed by two arguments I and II. You have to decide which of the arguments is a STRONG arguments and which is a WEAK Argument. Statement : Should there be a ban on product advertising Arguments : I. No. It is an age of advertising. Unless your advertisement is better than your other competitors, the product will not be sold. II. Yes. The money spent on advertising is very huge and it inflates the cost of the product.?
Answer: Option 5 Clearly, it is the advertisement which makes the customer aware of the qualities of the product and leads him to buy it. So, argument I is valid....
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Which of the following is not a product of coal tar distillation?
Answer: Option 4 Let'
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Polar organic compounds are normally used as separating agents for the azeotropic and extractive distillation. Which of the following is the most important factor to be considered for the choice of the separating agent for extractive distillation?
Answer: Option 4 Let'
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Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation?
Answer: Option 1 Let'
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Which of the following is not a valid assumption in continuous binary distillation for calculating the number of equilibrium stages by Mc-Cabe-Thiele's method?
Answer: Option 2 Let'
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Which of the following is NOT a feature of iso-product curve Iso-product curves?
Answer: Option 3 Iso-product curves doesnot intersect each other.
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Light oil whose major component is benzol, is obtained by the distillation of crude tar in the temperature range of __________ °C.?
Answer: Option 1 Let'
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