Home › CBSE Class 9 › chemistry › c9chemicallaws › Per NCERT Example 9.2, 12 g of carbon combines w…
Per NCERT Example 9.2, 12 g of carbon combines with 32 g of oxygen to form 44 g of CO₂. How much CO₂ forms from 2.4 g of carbon?
A32 g
B8.8 g (using proportional reasoning: 44/12 × 2.4)
C2.4 g
D12 g
Answer & Solution
Correct answer: B. 8.8 g (using proportional reasoning: 44/12 × 2.4)
Per NCERT Example 9.2, fixed ratio means 1 g C → 44/12 g CO₂. So 2.4 g × 44/12 = 8.8 g.
Related questions
Per NCERT, when zinc reacts with dilute HCl to form zinc chloride + hydrogen gas, would coPer NCERT, in the Activity 9.3 reaction between sodium sulfate and barium chloride, does tPer NCERT, in Activity 9.3 mixing sodium sulfate solution with barium chloride solution inPer NCERT, what is the difference between a PHYSICAL and a CHEMICAL change?Per NCERT, what does the law of constant proportions imply about WATER (H₂O) from differenPer NCERT, who is credited with the LAW OF CONSTANT PROPORTIONS (or Definite Proportions)?Per NCERT, the LAW OF CONSTANT PROPORTIONS states which of the following?Per NCERT Example 9.1, 4.0 g calcium carbonate reacts with 2.92 g HCl to give CO₂, water,