Chemistry quiz

Q1. Which Acid is present in Tomato?

• (A) Citric Acid

• (B) Oxalic Acid

• (C) Lactic Acid

• (D) HCl

Q2. Which of the following is a strong acid?

• (A) HCl pH 1

• (B) CH3COOH pH 5

• (C) Lemon juice pH 2.2

• (D) Pure Milk pH 6

Q3. Na2CO3.10H2O is known as -

• (A) Baking soda

• (B) Baking powder

• (C) Washing soda

• (D) Bleaching powder

Q4. pH value less than 7 indicates that the solution is –

• (A) No effect

• (B) Acidic

• (C) Basic

• (D) Neutral

Q5. Which of the following is neutral salt?

• (A) NH4Cl

• (B) CH3COONH4

• (C) CH3COONa

• (D)Na2CO3

Q6. Lactic Acid is present in –

• (A) Orange

• (B) Tea

• (C) Curd

• (D) Vinegar

Q7. Farmers neutralise the effect of Acidity on the soil by adding –

• (A) Slaked lime

• (B) Gypsum

• (C) Caustic soda

• (D) Baking soda

8. Which of the following are present in a dilute Aqueous solution of hydrochloric acid?

• (A) H3O + Cl–

• (B) H3O + OH–

• (C) Cl– + OH–

• (D) Unionised HCl

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