Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

what is thermite reaction? How it is used in joining railway tracks and cracked parts of machines.How do we get stainless steel?
Asked by | 06 Jun, 2013, 01:22: PM
answered-by-expert Expert Answer
A thermite reaction is basically iron oxide (rust) reacting with aluminum to produce molten iron.  

When the mixture is heated, it starts reacting: the aluminum is more reactive than the iron, so it "pinches" the oxygen from the iron to make aluminum oxide and iron.

The typical chemical reaction is: 

Fe2O3 + 2Al ? 2Fe + Al2O3 + heat and light

Stainless steels are iron alloys with a minimum of 10.5% chromium. Other alloying elements are added to enhance their structure and properties such as formability, strength and cryogenic toughness. These include metals such as:

  • Nickel
  • Molybdenum
  • Titanium
  • Copper

Non-metal additions are also made, the main ones being:

  • Carbon
  • Nitrogen

Answered by | 07 Jun, 2013, 11:48: AM
CBSE 10 - Chemistry
Asked by 09.10bjanvhijadhav | 02 Mar, 2024, 08:22: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by prassanna.j | 01 Mar, 2024, 11:59: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by yadavparmit83 | 01 Dec, 2023, 06:16: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by ramjilal01071988 | 14 Oct, 2023, 08:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by dikshantnaik1008 | 21 Jul, 2023, 11:47: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Chemistry
Asked by shoaibhakak41 | 18 Jan, 2023, 02:17: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×