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Question

Fill in the blanks in the following sentences :

(a) Acids have a ___ taste and they turn ___ litmus to ___ .

(b) Substances do not show their acidic properties without ___ .

(c) Acids produce ___ ions on dissolving in water.

(d) Those substances whose smell (or odour) changes in acidic or basic solutions are called ___ indicators.

(e) Onion and vanilla extract are ___ indicators.


Solution

(a) sour,  blue,  red
(b) water
(c) hydogen
(d) olfactory 
(e) olfactory 


Chemistry
Science for Tenth Class - Part II - Chemistry
Standard X

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