Related Questions

Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used
A As a lubricant
B As a rust preventive
C In hard water for cleaning of cloth
D As a foam depressant in distillation column
Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.
A Drying
B Semi-drying
C Non-drying
D None of these
Sentence Correction: Choose the answer that should replace the quotation part. In addition to having more protein than wheat does, "the protein in rice is higher quality than that in" wheat, with more of the amino acids essential to the human diet.
A the protein in rice is of higher quality than that of
B rice has protein of higher quality than that in
C the protein in rice is higher in quality than it is in
D rice protein in rice is higher in quality than it is in
The water and mineral salts are transported to the various organs by which of the following?
A Xylem
B Phloem
C Cortex
D Cambium
Bile salts
A Are the only constituents of bile necessary for digestion of fat
B Have characteristic parts
C water soluble & fat soluble
D Are derived from cholesterol
E Are reabsorbed mainly in the upper small intestine
F Inhibit bile secretion by the liver
Calcium salts used as fertilizer is:
A Calcium Carbide
B Calcium Carbonate
C Calcium Cyanide
D Calcium Sulphate
In __________ process, ions of salts react with water to produce acidity or alkalinity.
A Hydration
B Hydrolysis
C Electrolysis
D Dialysis
When water freezes in the polar seas the salts ________
A Form a layer on top
B Remain in the subsurface water that does not freeze
C Sink to the bottom
D Partly freeze and partly sink to the bottom
What is the correct decreasing order of the share of different salts in sea water?
A Sodium chloride, magnesium chloride, magnesium sulphate, potassium sulphate
B Sodium chloride, magnesium chloride, potassium sulphate, magnesium sulphate
C Sodium chloride, magnesium sulphate, potassium sulphate, magnesium chloride
D Sodium chloride, magnesium chloride, potassium sulphate, magnesium sulphate
Salinization occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land?
A It greatly increases the crop production
B It makes some soils impermeable
C It raises the water table
D It fills the air spaces in the soil with water

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