Worksheetschemistry ss1
Total questions: 25
Worksheet time: 19mins
Q4) pH value less than 7 indicates that the solution is –
(A) Acidic
(B) Basic
(C) Neutral
(D) No effect
acid reacts with carbonates to form salt, water and _____
carbon dioxide gas
oxygen gas
hydrogen gas
metal carbonate
Acid react with metal to form salt and ______
carbon dioxide
hydrogen gas
oxygen gas
water
Q3) Na2CO3 .10H2O is known as-
(A) Baking Soda
(B) Baking Powder
(C) Washing Soda
(D) Bleaching Powde
Q1) Which Acid is present in Tomato ?
(A) Citric Acid
(B) Oxalic Acid
(C) Lactic Acid
(D) HCl
Q7) Farmers neutralize the effect of Acidity on soil by adding
(A) Slaked Lime
(B) Gypsum
(C) Caustic Soda
(D) Baking Soda
Q9) CuSO4 .5H2O In this Compound the water molecule is called -
(A) Pure Water
(B) Water of Crystallisation
(C) Soda Water
(D) None of these
Q10) Which of the following salts does not contain water of crystallization?
(A) Blue vitriol
(B) Baking soda
(C) Washing soda
(D) Gypsum
What is the Chemical name of Baking Powder
Sodium Carbonate
Calcium Oxychloride
Sodium Hydrogen Carbonate
Sodium Chloride
The pH scale is used to determine the strength of
acids and bases
chemical bonds
electrical charges
particles in a solution
Which of the following are the characteristics of a BASE?
Very bitter in taste
Liberate OH- ions when dissolved in water
Have pH of less than 7
Turns blue litmus red
Which pH level indicates a strong alkali?
1-3
4-6
8-11
12-14
When an equal strength acid and base are mixed, what kind of chemical reaction occurs?
Neutralization
Combustion
Oxdation
Decomposition
Which of the following feel soapy on touching?
Acid
Base
Salt
None of these
Bases taste
sweet
sour
bitter
salty
Acids taste
sour
sweet
bitter
salty
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