Lithophane is ___________________?

Related Mcqs:

1. Catalyst used during the manufacture of ‘Vanaspati Ghee’ is ___________________?

   A. Zinc
   B. Nickel
   C. Platinum
   D. Copper

2. The main use of activated carbon in water treatment is to control ___________________?

   A. Bacterial growth
   B. Taste and odour
   C. Turbidity
   D. None of these

3. The basic constituent of vegetable oils is ___________________?

   A. Triglyceride
   B. Fatty acids
   C. Fatty alcohol
   D. Mono esters

4. Air used in aerobic fermentation must be sterilized, otherwise the ___________________?

   A. Recovery of product will be difficult
   B. Contamination of pure culture would result
   C. Uniformity of product cannot be achieved
   D. None of these

5. Lime and soda ash are added to water to remove ___________________?

   A. Bicarbonates & sulphates of calcium and magnesium
   B. Undesirable taste and odour
   C. Bacteria
   D. Its corrosiveness

6. Glycerine is recovered from lye by ___________________?

   A. Evaporation followed by vacuum distillation
   B. Liquid extraction technique
   C. Extractive distillation technique
   D. None of these

7. Titanium dioxide is a/an ___________________ colour pigment?

   A. White
   B. Black
   C. Yellow
   D. Blue

8. Roasting of metallurgical ores is done mainly to ___________________?

   A. Dehydrate it
   B. Sinter the ore
   C. Remove CO2 & H2O
   D. Remove arsenic & sulphur

9. Production of one ton of dry paper pulp requires about ___________________ tons of bamboo or wood?

   A. 1
   B. 2.5
   C. 5
   D. 10

10. A unit operation is exemplified by the process of ___________________?

    A. Reduction
    B. Desorption
    C. Nitration
    D. Combustion