The color which we see when our eyes are closed?
A. Eigengrau
B. Grey
C. Black
D. None of these
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Nitrogenous wastes excreted through urine in human is:
A. Urea
B. Ammonia
C. Uric acid
D. None of these
Correct Answer: A
Humans and most other mammals produce urea as the nitrogenous waste, which is filtered out from the blood by kidneys and excreted out.
In the manufacture of Banaspati ghee, which gas is used?
A. Nitrogen
B. Hydrogen
C. Helium
D. None of these
Correct Answer: B . The gas used in the manufacture of Banaspati Ghee from Banaspati Oil is Hydrogen. At high pressure, in the presence of nickel catalyst, hydrogen is mixed with vegetable oils which turn them into vegetable ghee.
Kidney stone is caused due to:
A. Sulfur dioxide
B. Aluminum oxide
C. Calcium oxalate
D. None of these
Correct Answer: C
Some foods that contain high levels of oxalate include: peanuts, spinach, chocolate , Beets and sweet potatoes. Moderating intake of these foods may be beneficial for people who form calcium oxalate stones.
Cooking gas is also called:
A. Butane
B. Propane
C. Hexane
D. None of these
Correct Answer: A
Cooking gas is also known as liquified Petroleum Gas (LPG), is a mixture of propane and butane. It is better suited to indoor use, and fuelling appliances like portable gas heaters and single-burner cooking stoves.
The escape of water molecules from surface is called:
A. Sublimation
B. Condensation
C. Evaporation
D. None of these
Correct Answer: C
Alternative current (AC) is converted into direct current (DC) by using a:
A. Generator
B. Rectifier
C. Voltmeter
D. None of these
Correct Answer: B
Direct current (DC) is converted into alternating current (AC) by using a Inverter.