The weight of iron which will be converted into its oxide(Fe₃O₄) by the action of 18g

The Weight Of Iron Which Will Be Converted Into Its Chemistry Question

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

Related Questions:

  1. The number of unpaired electron in Mn²⁺ is
  2. Equal volumes of 0.1 M AgNO₃ and 0.2 M NaCl are mixed
  3. The amphoteric oxide is
  4. Heat produced on burning 6.3 g of a fule raises the temperature of 1.5 kg
  5. Which colourless gas evolves, when NH₄ Cl reacts with zinc in a dry cell battery

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

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*