Chemistry

Atoms

• The term 'atom' was introduced by Ostward. 
• Atoms are the tiny particles of which everything is made. 
• The first atomic theory was postulated by John Dalton in 1808. 
• The nuclear model of atom was first proposed by Rutherford. 
• The term molecule was introduced by Amadeo Avogadro. 
• The simplest Atom is Hydrogen. 
• Mass number is the sum of numbers of protons and neutrons presenting the nucleous of an atom. 
• The smallest atom known is helium. 
• Anode rays are discoverd by Eugene Goldstein 
• Cathode rays are used in Television. 
• The radioactive gaseous element is radon. 
• The radioactive liquid element is francium. 
• The most valid atomic theory is " wave mechanical model of atom " suggested by Max plank.

chemistry Expected Questions

Chemistry

1. What is the colour of Nickel Salt?

Answer: Green

2. What is the colour of Ferric salt?

Answer: Brown

3. What is the colour of Ferrous salt?

Answer: Green

4. What is the colour of Cobalt salt?

Answer: Blue

5. What is the colour of Manganese dioxide?

Answer: Purple

6. What is the colour of Cupric oxide?

Answer: Red

7. What is the colour of Cadmium sulphide?

Answer: Lemon yellow

8. What is the colour of Uranium oxide?

Answer: Greenish yellow

9. What is the colour of Cryolite?

Answer: Milky

10. What is the colour of Phosphate?

Answer: Milky

11. Bosch Process is related to?

Answer: Hydrogen

12. Castner Process is related to?

Answer: Sodium

13. Down’s Process is related to?

Answer: Sodium

14. Nelson Process is related to?

Answer: NaOH (Sodium Hydroxide)

15. Lead Chamber Process is related to?

Answer: Sulphuric acid

16. Lowing process is related to?

Answer: NaOH

17. Leblanc Process is related to?

Answer: Na2CO3 (Sodium Carbonate)

18. Engel Precht Process is related to?

K2CO3 (Potassium Carbonate)

19. Cyanide Process is related to?

Answer: Gold and Silver

20. Parke’s Process is related to?

Answer: Silver

21. Cupellation Process is related to?

Answer: Silver (Purification)

22. Mond Process is related to?

Answer: Nickel

23. Pidgeon Process is related to?

Answer: Mg (Magnesium)

24. Dow’s Sea Water Process is related to?

Answer: Mg (Magnesium)

25. Bayer’s Process is related to?

Answer: Aluminium

26. Serpeck’s Process is related to?

Answer: Aluminium

27. Hoopes Process is related to?

Answer: Aluminium

28. Haber Process is related to?

Answer: Ammonia

29. Bessemer Process is related to?

Answer: Steel

30. Siemens Process is related to?

Answer: Steel

31. Frasch Process is related to?

Answer: Sulphur

32. IMI Process is related to?

Answer: Ti (Titanium)

33. Oxo Process is related to?

Answer: Alcohol

34. Ostwald’s Process is related to?

Answer: Nitric Acid

35. Deacon’s process is related to?

Answer: Chlorine