1 Answers
Talk Doctor Online in Bissoy App
Determine the empirical formula of an oxide of iron which has 69.9% iron and 30.1% dioxygen by mass.
Answer: Given Mass % of iron = 69.9 % Mass % of oxygen = 30.1 % Element Atomic mass Mass % Mass % / atomic mass Fe 55.85 69.9 69.9/55.85 = 1.25 O 16.00 30.1 30.1/16.00 = 1.88 Fe : O = 1.25 : 1.88 Converting...
1 Answers 1 views
What changes in the colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate solution?
Iron nails become reddish brown in colour and solution becomes green in colour.
1 Answers 1 views
Match each of the set on the left in the roster form with the same set on the right described in set-builder form:
(i) All the elements of this set are natural numbers as well as the divisors of 6. Therefore, (i) matches with (c). (ii)It can be seen that 2 and 3 are prime numbers....
1 Answers 1 views
Which of the following are physical changes? (i) Melting of iron metal (ii) Rusting of iron
(c) (i), (iii) and (iv)
1 Answers 1 views
Name the most important form of iron. Mention its one use.
Cast iron is used for making gutter pipes, castings, railway sleepers, toys etc.
1 Answers 1 views
A bar magnet is immersed in a heap of iron filings and pulled out. The amount of iron filling clinging to the,
(a) North pole is almost equal to the south pole.
1 Answers 1 views
Mention any three iron ore- belts of India? Write any three characteristics of the southern most iron ore belt .
1. Odisha-Jharkhand Belt- Famous for Haematite iron ore. Badampahar Mines in the Mayurbhanj and Kendujhar districts. Singhbhum district of Jharkhand. 2. Durg-Bastar-Chamdarapur Belt- High Grade Haematite ore. Chhatisgarh and Maharashtra.Bailadadila range...
1 Answers 1 views
Mention any three iron ore- belts of India? Write any three characteristics of the southern most iron ore belt .
1 Answers
1 views
A circular disc X of radius R is made from an iron plate of thickness t, and another disc Y of radius 4R is made from an iron plate of thickness t/4.
Aapne galat solve kiya hai
1 Answers 1 views