Metal And Its Compounds - Study Mode
[#296] Which one of the following does not contain silver?
Correct Answer
(B) German silver
[#297] On heating gypsum at 373K, it loses water molecules and becomes calcium sulphate hemihydrate. This substance is used to make toys, material for decoration and smooth surfaces. What is this substance commonly known as?
Correct Answer
(B) Plaster of Paris
[#298] Give an example of a metal which can be easily cut with a knife.
Correct Answer
(B) Sodium
[#299] Which of the following is the electron configuration of a metallic element?
Correct Answer
(D) 2, 8, 8, 2
[#300] The chemical name for "caustic soda" is:
Correct Answer
(B) sodium hydroxide