Question: Synthetic glycerine is produced from___________________?

• 1. Toluene
• 2. Phenol
• 3. Propylene
• 4. Naphthalene

Question: Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the _____________ process?

• 1. Mechanical
• 2. Sulphate/Kraft
• 3. Sulphite
• 4. Neutral sulphite semi-chemical

Question: Oxygen is produced by fractionation of air using _____________ process?

• 1. Linde’s
• 2. Claude’s
• 3. Either A or B
• 4. None of these

Question: Hydrogenation of vegetable oils is a/an _______________ reaction ?

• 1. Endothermic
• 2. Autocatalytic
• 3. Exothermic
• 4. Homogenous

Question: Cement setting under water employs a/an _______________ process ?

• 1. Hydration
• 2. Decomposition
• 3. Oxidation
• 4. Reduction

Question: Paper grade bamboo contains about _______________ percent cellulose ?

• 1. 5
• 2. 20
• 3. 40
• 4. 60

Question: The major constituent of black liquor generated during paper manufacture is sodium___________________?

• 1. Sulphate
• 2. Carbonate
• 3. Hydroxide
• 4. Bi-carbonate

Question: Most widely and commonly used coagulant for the removal of suspended impurities in water is __________________?

• 1. Bleaching powder
• 2. Slaked lime
• 3. Alum
• 4. Copper sulphate

Question: Flash point of most vegetable oils is about _______________ °C ?

• 1. 50
• 2. 100
• 3. 200
• 4. 300

Question: Common salt is generally not produced commonly by ________________ method from brine ?

• 1. Freeze drying
• 2. Electrolytic
• 3. Solar evaporation
• 4. Vacuum evaporation