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The weight of iron which will be converted into its oxide(Fe₃O₄) by the action of 18 g of steam on it will be (at. wt. of Fe=56)
Options
(a) 168 g
(b) 84 g
(c) 42 g
(d) 21 g
Correct Answer:
42 g
Explanation:
3Fe + 4H₂O → Fe₃O₄ + 4H₂
3x 56 g 4x 18 g
= 168 g = 72 g
72 g steam requries Fe= 168 g
18 g steam requires Fe= 168x 18/72
= 42 g
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Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Basic Concepts of Chemistry
(94)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- How many moles of iodine are liberated when 1 mole of potassium dichromate
- In the reaction : 4Fe + 3O₂ ⇌ 4Fe³⁺ + 6O₂²⁻. Which of the following
- Two chemicals having same chemical formula but different arrangement of atoms
- The number of acidic protons in H₃PO₃ are
- If 0.44g of a colourless oxide of nitrogen occupies 224 ml at 1520 mm of Hg and 273⁰C
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Basic Concepts of Chemistry (94)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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