The colour of neutral litmus solution is
(a) red
(b) blue
(c) purple
(d) yellow
1 Answers
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Three identical towels of red, blue and green colour are hanging on a clothes line in the sun. What would be the colour of shadows of these towels?
The colour of shadows of all three towels will be the same.
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One die of red colour, one of white colour and one of blue colour are placed in a bag
A die has six faces that are numbered from 1 to 6, with one number on each face. Let us denote the red, white, and blue dices as R, W,...
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Select the correct observation about dilute solution of acetic acid. (A) It smells like rotten egg and turns blue litmus red.
(D) It smells like vinegar and turns blue litmus red.
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Critical angle of light passing from glass to water is minimum for (a) red colour (b) green colour
(d) violet colour
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There are some balls of red, green and yellow colour lying on a table. There are as many red balls as there are yellow balls.
(b) According to question R = y and y = 2G ∴ R = 2G Hence, the number of red balls is double the number of green balls.
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In a certain code, 256 means red colour chalk, 589 means green colour flower,
(B) In the first and second statements, the common digit is 5 and the common word is colour. So, 5 means colour. In the first and third statements, the common code...
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Which of the following statements regarding red soils of India is/are correct? 1. The colour of the soil is red due to ferric oxide content.
(b) Red soils are very poor in lime, humous and potash.
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In a tabular form, write the colours of the following indicators in presence of acid and bases : Litmus solution, phenolphthalein solution,
Indicators Acid Base Litmus solution Blue to Red Red to Blue Phenolphthalein Colourless Pink Methyl orange Yellow Pink
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Acids are the substances which turn blue litmus solution red and are sour in taste. There are different types of acids like mineral acids,
(i) The acids which are obtained from plants and animals are called organic acids. Citric acid is obtained from the lemon. Vinegar contains acetic acid. (ii) Concentrated acids are very hot when they...
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A student puts a drop of reaction mixture of a saponification reaction first on a blue litmus paper and then on a red litmus paper.
There is no change in blue litmus paper as soap solution is alkaline in nature.
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