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Q 1.
In which solution colour of turmeric remains unchanged?
Ans.
Sugar solution.
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Q 2.
Products of neutralization reaction?
Ans.
Salt and water.
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Q 3.
The reaction between an acid and base is called?
Ans.
Neutralization.
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Q 4.
Define neutral solutions?
Ans.
The solution which do not change colour either red or blue litmus.
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Q 5.
Name the natural indicator?
Ans.
Lichens.
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Q 6.
Colour of turmeric in hydrochloric acid?
Ans.
Blue.
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Q 7.
Property of Distilled Water?
Ans.
It is neutral in nature.
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Q 8.
Name the source from where litmus solution is obtained?
Ans.
Lichens.
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Q 9.
How the taste of a acid?
Ans.
Sour.
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Q 10.
Acid present in spinach?
Ans.
Oxalic acid.
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Q 11.
Acid present in curd?
Ans.
Lactic acid.
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Q 12.
Name the acid present in tamarind, grapes and unripe Mangoes?
Ans.
Tartaric acid.
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Q 13.
Name the acid present in vinegar?
Ans.
Acetic acid.
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Q 14.
Name the acid which presents in ant's sting?
Ans.
Formic acid.
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Q 15.
Name the acid present in oranges and lemons?
Ans.
Citric acid.
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Q 16.
Ascorbic acid is found in?
Ans.
Amla and citrus fruits.
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Q 17.
Name the substance which found in soaps?
Ans.
1.Sodium hydroxide
2.Potassium hydroxide |
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Q 18.
China Rose (gudhal) indicator turns acidic solution to?
Ans.
Dark pink.
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Q 19.
China Rose (gudhal) indicator turns basic solutions to which colour?
Ans.
Green.
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Q 20.
What is the colour of turmeric in sodium hydroxide solution?
Ans.
Red.
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Q 21.
Blue litmus paper is dipped in a solution. It remains blue why?
Ans.
Nature of solution is either basic or neutral.
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Q 22.
Change of colour in acid and bases depends upon?
Ans.
The type of indicator.
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