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NON-MEATALS, D. Acid, Base and Salt

📆 October 22, 2024

Total Questions: 56

31. Baking soda is – [R.A.S./R.T.S. (Pre) 1993]

Correct Answer: (b) Sodium Bicarbonate
Solution:Sodium bicarbonate is also known as Baking Soda. The chemical formula of Sodium bicarbonate is NaHCO₃.

32. Baking Soda is – [Chhattisgarh P.C.S. (Pre) 2016]

Correct Answer: (a) Sodium Hydrogen Carbonate
Solution:Sodium bicarbonate is also known as Baking Soda. The chemical formula of Sodium bicarbonate is NaHCO₃.

33. The chemical formula of baking soda is : [R.A.S./R.T.S. (Pre) 2016]

Correct Answer: (b) NaHCO₃
Solution:Sodium bicarbonate is also known as Baking Soda. The chemical formula of Sodium bicarbonate is NaHCO₃.

34. Baking soda is – [Chhattisgarh P.C.S. (Pre) 2016]

Correct Answer: (c) NaHCO₃
Solution:Sodium bicarbonate is also known as Baking Soda. The chemical formula of Sodium bicarbonate is NaHCO₃.

35. The chemical formula of washing soda is – [43rd B.P.S.C. (Pre) 1994]

Correct Answer: (b) Na₂CO₃
Solution:Sodium carbonate is known as washing soda. It is used as detergent. Its formula is Na₂CO₃.

36. What is the chemical name of Washing Soda? [Chhattisgarh P.C.S. (Pre) 2013]

Correct Answer: (a) Sodium carbonate
Solution:Sodium carbonate is known as washing soda. It is used as detergent. Its formula is Na₂CO₃.

37. Consider the following statements – [I.A.S. (Pre) 2005]

  1. Anhydrous Sodium carbonate is commonly known as baking sodium (baking soda).
  2. Baking soda is used as a fire extinguisher.
  3. Bleaching powders are produced in Hasenclever plant.

Which of these statements is right:

Correct Answer: (b) 2 and 3
Solution:Sodium bicarbonate (NaHCO₃), also known as baking soda is used in bakery products, while anhydrous sodium carbonate (Na₂CO₃) is used as washing soda in detergent. Bleaching powder is prepared in Hasenclever plant or Backmann plant. Baking soda is also used as fire extinguisher equipment. Hence, statements 2 and 3 are correct.

38. Match List-I with List-II and select the correct answer using the codes given below the Lists. [U.P. P.C.S. (Mains) 2017]

List-IList-II
A. Artificial fruits ripening1. Carbon dioxide
B. Baking Soda2. Sodium silicate
C. Soft Drink3. Ethylene
D. Quartz4. Sodium bicarbonate

Code :

 

Code ABCD
(a)3421
(b)3412
(c)4321
(d)2143
Correct Answer: (b)
Solution:Ethylene is used in artificial fruit ripening, carbon dioxide is used in soft drinks, baking soda is the commercial name of sodium bicarbonate, and quartz is used for producing sodium silicate.

39. Quartz crystals used in clocks are – [63rd B.P.S.C. (Pre) 2017]

Correct Answer: (b) Silicon dioxide
Solution:Quartz crystals used in clocks are composed of silicon and oxygen atoms. The atoms are linked in a continuous framework of SiO₄ (silicon-oxygen tetrahedra), with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO₂ (silicon dioxide).

40. Which one of the following salt predominant in the ocean? [Uttarakhand U.D.A./L.D.A. (Pre) 2003]

Correct Answer: (b) Sodium Chloride
Solution:Sodium chloride (NaCl) is known as common salt or table salt. It is found in ocean water (salt water) and salt lakes. It is the predominant salt in the ocean water. It is prepared by evaporating salt water.
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