WorksheetsCBSE Class 10 Science MCQ
Total questions: 15
Worksheet time: 8mins
Which Acid is present in Tomato ?
Citric Acid
Oxalic Acid
Lactic Acid
HCl
Which Acid is a strong Acid in the following:
HCl pH 1
CH3COOH pH 5
Lemon juice pH 2.2
Pure Milk pH 6
Na2CO3.10H2O is known as-
Baking Soda
Baking Powder
Washing Soda
Bleaching Powder
pH value less than 7 indicates that the solution is –
Acidic
Basic
Neutral
No effect
Which salt is Neutral salt?
NH4Cl
CH3COONH4
CH3COONa
Na2CO3
Lactic Acid is present in-
Orange
Tea
Curd
Vinegar
Farmers neutralize the effect of Acidity on soil by adding
Slaked Lime
Gypsum
Caustic Soda
Baking Soda
Which of the following are present in a dilute Aqueous solution of Hydrochloric Acid?
H3O + Cl-
H3O + OH-
Cl- + OH-
Unionised HCl
CuSO4.5H2O In this Compound the water molecule is called -
Pure Water
Water of Crystallisation
Soda Water
None of these
Which of the following salts does not contain water of crystallization?
Blue vitriol
Baking soda
Washing soda
Gypsum
An aqueous solution turns the red litmus solution blue. Excess addition of which of the following solutions would reverse the change?
Baking powder
Lime
Ammonium hydroxide solution
Hydrochloric acid
In which pH range does our body work to survive in the atmosphere?
5.5 to 8.5
7.0 to 7.8
2.3 to 7.0
7.5 to 12.5
What is the chemical formula of POP (Plaster of Paris)?
CaSO4.2H2O
CaSO4.3H2O
CaSO4.1/2H2O
CaCO3.1/2H2
What happens when a solution of an acid is mixed with a solution of a base in a test tube?
(i) The temperature of the solution increases
(i) and (iii)
(ii) and (iii)
(i) and (iv)
When a base reacts with a metal, it forms a salt and hydrogen gas is released. By what method can the presence of hydrogen be detected?
by water
by litmus paper
by methyl orange
by a burning candle
