EASY
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Which of the following represents the correct matching order?

Column-A Column-B
A. Acetic acid I. Curd
B. Lactic acid II. Spinach
C. Oxalic acid Ill. Citrus fruits
D. Ascorbic acid IV. Vinegar

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Important Questions on Acids, Bases and Salts

EASY

Tartaric acid is found in:

1. Lemons

2. Amla

3. Unripe mangoes

4. Grapes

EASY
Hydrogen chloride (HCl) when in pure form, does not show acidity during litmus test. But turns blue litmus red when it is dissolved in water. Suggest an appropriate reason for this contradiction _____.
EASY
Acid rain is formed due to contribution from the following pair of gases _____.
EASY
In the alternatives that follow a cure has been suggested against each of the given daily life problems. Identify the alternative with an appropriate suggestion _____.
EASY

Consider the following table of naturally occurring acids:

SUBSTANCE ACID
A. Grapes i
B. Tomatoes ii
C. iii Oxalic Acid
D. Ant String iv

The correct option is (i) (ii) (iii) (iv) _____.

EASY
Acids that contain hydrogen and other non-metallic elements except oxygen are called:
EASY
Hydrochloric acid is produced in our stomach to digest food, still it is not considered as an organic acid. Why?
EASY

'X is a chemical present in our stomach and is necessary for the digestion of food. When 'X' is secreted in excess, it causes health problems like indigestion. 'Y’ is a chemical used to treat this condition. What could be 'X' and 'Y’?

EASY
Which of the following is present in the acid rain?
MEDIUM
While diluting Sulfuric acid, it is recommended that the acid should be added to water because _____.
EASY
Which of the following statements is not correct?
MEDIUM
A boy has a thick paste of turmeric. On adding this paste to hydrochloric acid aqueous solution & sodium hydroxide separately, what colour(s) would he observe?
EASY
Which of the following acids is found in sting of ants?
EASY
The process of converting waste material into new material is:
EASY

Acid Rain destroys vegetation because it contains :

 

MEDIUM

Which of the following represents correct matching order?

A. Acetic acid I. Curd
B. Lactic acid II. Spinach
C. Oxalic acid III. Citrus fruits
D. Ascorbic acid IV. Vinegar
MEDIUM
A man goes door to door posing as the Goldsmith. He promises to bring back the glitter on dull gold ornaments. An unsuspecting woman gives a set of gold bangles to him which he dips in a particular solution. The bangles sparkled but their weight was considerably reduced. The solution used by the imposter probably is _____.