If 1.5 moles of oxygen combines with aluminium to form Al2O3, then the weight of aluminium (atomic weight = 27) used in this reaction is __________ gm?
Correct answer: B. 54
- A. 27
- B. 54
- C. 5.4
- D. 2.7
Explanation
The reaction is 2Al + 3/2O2 → Al2O3, so 1.5 mol of oxygen consumes 2 mol of aluminium. The aluminium mass is therefore 2 × 27 = 54 g.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
The number of H+ in 1 c.c solution of pH 13 is__________________?
Pick out the correct conversion?
Hot metal runner in blast furnace are lined with ______________ bricks?
1 bar is almost equal to __________________________ atmosphere?
Measurement of the amount of dry gas collected over water from volume of moist gas is based on the___________________?
The value of the gas-law constant 'R' is 1.987 ?