Chemistry
Choose the role played by alloys given as A, B, C with 1 to 3.
A. Solder
B. Duralumin
C. Stainless steel
It is stronger than aluminium, has light weight and is used in making aircraft frames.
It is lustrous, hard, corrosion resistant and used in surgical instruments.
It lowers the melting point of the alloy and is used for soldering purpose.
Related Questions
Solve
A compound has the following percentage composition by mass, carbon 14.4%. hydrogen 1.2% and chlorine 84.5%. Determine the empirical formula of this compound. (H=1, C=12 and Cl=35.5)
State the conditions required for the following reactions
(a) Conversion of potassium nitrate to potassium bisulphate.
(b) Conversion of nitrogen and hydrogen to ammonia.
(c) Conversion of ammonia to nitric oxide.
Identify the catalyst used and the compound formed from the following observation.
(a) A catalyst used in the manufacture of nitric acid by Ostwald's process.
(b) A compound formed when both sulphur trioxide and sulphuric acid reacts.
Write the products and balance the equation.
(a) NH4OH + HCl ⟶
(b) ZnS + HCl ⟶