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WorksheetsScience
Total questions: 20
Worksheet time: 4mins
what is acid.
(Definition)
(a)
Strongest acid.
citric acid
Malic Acid
hydrochloric acid
Lactic Acid
What we will add to the china rose flower water to make it green?
base
acid
phenolphthalein
indicator
Turmeric is what?
acid
base
neutral substance
natural indicator
What turns blue litmus red
(a)
What turns red litmus blue?
(a)
Phenolphthalein is -
coluorlsee
acid
colourless
culourless
Which two substances have no effect on turmeric paper.
acid
neutral solution
base
acidic and neutral solution
Phenolphthalein solution remains colourless in which solution.
acidic solution
neutral solution
basic solution
both [a] and [b]
Properties of acid are.
Acids are sour in taste.
Acids are not soluble in water.
acids generally have bitter taste.
acids are soluble in water
both (a) and (d)
Tannic acid is in
orange
vinegar
Tea
amla
How was the quiz till now?
(a)
What is used in manufacturing of soaps, paper ,rayon etc in industrial chemicals.
Hydroxide
Sodium Hydroxyde
ammonium hydroxide
none
Two Human Made Indicator is-
(a)
Who cannot survive in acidic environment
(a)
acid can destroy:-
paper
base
cloth
metal
paper,cloth and metal
Lime water:- effect on red litmus paper,effect on blue litmus paper and interference.Which one of the following is in correct order.
changes to blue colour , changes to red , neutral solution
changes to blue colour ,changes to nothing ,acidic solution
changes to blue colour, changes to magenta, basic solution
changes to blue colour, changes to nothing ,basic solution
none of the above
What is a base?
(a)
Full form of DNA:-
(a)
Bases solution conduct what
(a)
