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 solution are called .......................... indicators.
(e) Onion and vanilla extract are..........................indicators.

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Solution

(a) Acids have a sour taste and they turn blue litmus to red.
(b) Substances do not show their acidic properties without water.
(c) Acids produce hydronium ions on dissolving in water.
(d) Those substances whose smell (or odour) changes in acidic or basic solution are called olfactory indicators.
(e) Onion and vanilla extract are olfactory indicators.

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Similar questions

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 ___ .

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

(e) Onion and vanilla extract are ___ indicators.

Acid-base Indicators are substances which show whether the substance is basic or acidic.

Fill in the blanks:

(1) Most of the acidic substances are ________ in taste.

(2) Phenolphthalein is ________ type of indicator.

(3) The strength of basic substance is represented by ________.

(4) pH scale ranges from ________ to ________

(5) Acids and bases neutralize each other to form ________ and ________.

(6) Sodium or potassium salts of higher fatty acids are termed as ________.

(7) In FeSO₄.7H₂O, H₂O represents ________.

(8) 10% NaCl is known as ________.

Indicators are substances which show whether the substance tested is basic or acidic.

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