3091023
Description
Quiz by asthanarang, updated more than 1 year ago
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Created by asthanarang
over 9 years ago
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Question 1
Question
Tasting is the best way to identify if a solution is acidic or basic.
Answer
- True
- False
Question 2
Question
In neutral solution, litmus is ________ in colour.
Answer
-
Red
-
Blue
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Purple
-
Green
Question 3
Question
Which of the following can be used as acid-base indicators? Select all correct options
Answer
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Safranin
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Bromthymol blue
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Methyl orange
-
Methylene blue
Question 4
Question
Onion and vanilla are ___________.
Answer
-
Acids
-
Bases
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Visual indicators
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Olfactory indicators
Question 5
Question
Which indicator is pink in alkaline solution?
Answer
-
Phenolphthalein
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Litmus
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Methyl orange
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Safranin
Question 6
Question
Lichens are symbiotic relatonships between:
Answer
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Protozoa and fungi
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Algae and fungi
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Algae and protozoa
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Bacteria and fungi
Question 7
Question
Which of tbe following can be used as visual indicators?
Answer
-
Turmeric, clove oil and red cabbage
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Red cabbage, petals of Geranium and vanilla extract
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Petals of Geranium, red cabbage and turmeric
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Green cabbage, turmeric and clove oil
Question 8
Question
The characteristic smell of onion disappears when _________ is added to it.
Answer
-
Tartaric acid
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Ammonium hydroxide
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Phenolphthalein
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Vegetable oil
Question 9
Question
A dark blue colour on pH paper indicates that the test solution is basic in nature.
Answer
- True
- False
Question 10
Question
What will be the colour of litmus solution when it is tested with detergent solution?
Answer
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Red
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Blue
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Purple
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Depends on the brand of the detergent
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