Pick out the wrong statement ?

Related Mcqs:

1. Pick out the wrong statement ?

   A. Wine, rum & Vodka are prepared by the formulation of fruit juice, sugar beet & rye
   respectively
   B. Protein catalysts are called enzymes
   C. The rate of chemical reaction is independent of the concentration of reactants at high
   concentration of enzymes
   D. Total sugar content in molasses is about 10%

2. Pick out the wrong statement ?

   A. Low intensity explosives are also called propellants, whereas high intensity explosive are
   called detonators
   B. Gun powder comprises of 75% salt petre, 15% charcoal and 10% sulphur
   C. Lead azide is a popular military explosive
   D. TNT is a hygroscopic explosive having very high melting point and is non-toxic to human
   being

3. Pick out the wrong statement?

   A. Dry process is used for the manufacture of cement, when the raw material is blast furnace slag
   B. Portland cement is made employing wet process
   C. Gypsum is added to Portland cement to lengthen its setting time
   D. None of these

4. Pick out the wrong statement pertaining to the soap manufacture?

   A. Transparent soaps are made by cold process
   B. Organic pigments are used as colouring materials in the soap manufacture
   C. Both laundry as well as toilet soaps are manufactured by hot process
   D. Colourless rosin is used in the manufacture of laundry soaps

5. Pick out the wrong statement ?

   A. Catalytic hydrogenation of carbon monoxide produces methyl alcohol
   B. In nylon-6, the number 6 represents the total number of carbon atoms in the ring
   C. Raw materials for DDT manufacture are benzene and chlorine
   D. Ethanolamines are produced by using ammonia and ethylene oxide as raw material

6. Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have___________________?

   A. High electrical insulation properties
   B. Sharp melting points
   C. Low co-efficient of thermal expansion
   D. Compressive strength much greater than their tensile strengths

7. Pick out the wrong statement ?

   A. Fibrillation of fibre during paper manufacture is done to develop the strength in paper
   B. Alkali consumption in digestion/cooking of bamboo is measured in terms of permanganate
   number
   C. Bagasse fibre contains both lignin & cellulose
   D. Presence of sodium sulphate in pulp makes the pulp bleachability poor

8. Pick out the wrong statement?

   A. Eosin requirement in tallow soap is about 40-50% which fastens the lather formation, softens
   the hard soaps and increases its cleansing action
   B. Soap powder is prepared by mixing soap with hydrated sodium carbonate
   C. Detergents differ from soaps in their action in hard water
   D. Tarnish inhibitor (e.g., Benzotriazole) is added in soap to facilitate the removal of stains due
   to tea, blood etc

9. Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction__________________?

   A. Decreases with decrease of thickness of the flakes
   B. Increases with the increasing flake size keeping the flake thickness constant
   C. Increases considerably with the rise of temperature
   D. Decreases as the moisture content of flakes increases

10. Pick out the wrong statement ?

    A. High early strength cement are made from materials having high silica to lime ratio
    B. The function of gypsum in cement is to enhance its initial setting rate
    C. Acid resistant cements are known as silicate cement
    D. Major component of greyish Portland cement is tricalcium silicate