Phenolphthalein indicator gets pink colour with
A) HCl solution
B) NaOH solution
C) H2SO4 solution
D) CH3COOH solution
1 Answers
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A gas is pale blue in colour on liquifaction, the colour arises from electronic transitions. This transition is forbidden in gaseous state. The gas do
Correct Answer - `32, O_(2)`
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“Income alone is not a completely adequate’ indicator of development of a country”.
B) Some people earn more than others do
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What is an indicator of income for the country ?
correct option is C) GDP
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The colour of phenolphthalein indicator in basic solution is ………………….
Correct option is C) pink
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Which of the following solutions give yellow colour with methyl orange indicator.
Correct option is A) NaOH
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A solution turned pink when a drop of phenolphthalein was added to it. The probable pH .of that solution is
Correct option is D) 10
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You are doing experiments on diffusion in your lab. Find the substance which turns into pink colour when added to water.
C) Potassium permanganate
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A substance is in light yellow colour. If we put it in sunlight, it changes into grey colour. What is the substance ?
C) Silver bromide
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Observe the a, b statements. a : Yellow colour YY is pure breed. b : Green colour yy is also pure breed.
(A) Both a and b are true
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If Yy represents yellow colour, then which colour will be dominant ?
Answer is (C) Yellow
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