Characteristics of Acids Bases and SaltsEveryday Science
Water is an example of
acid
base
amphoteric substance
salt
amphoteric substance
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Vitamin C is soluble inA. fat
B. water
C. ethers
D. phenols
What is the color of methyl red in the basic solution?
A. yellow
B. blue
C. pink
D. colorless
When [H+] is less than 1 x 10-7, the solution is
A. neutral
B. acidic
C. basic
D. amphoteric
The density of air in the atmosphere is
A. uniform
B. not uniform
C. zero
D. none of above
What is the effect of the base on red litmus paper?
A. it turns blue
B. it turns pink
C. it remains red
D. it becomes colorless
In the body, the weight of blood is about
A. 1/12th of body
B. 1/5th of body
C. 1/8th of body
D. 1/4th of body
Which substance is present in fuel?
A. Iron
B. Gold
C. Carbon
D. Copper
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