HARD
10th CBSE
IMPORTANT
Earn 100

Draw a labelled diagram of Frasch process for mining sulphur. State the function of the following in the Frasch process: (a) Superheated water (b) Air at high pressure

Important Questions on Metals and Nonmetals

EASY
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 1
Because of high electropositivity, the atoms of metals can easily form
EASY
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 2
Metals below hydrogen in the activity series can
EASY
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 3
Sulphide ores are generally concentrated by
EASY
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 4
Oxides of metals are generally
EASY
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 5
The number of electrons in the outermost shell of a nonmetal can be
MEDIUM
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 6
The ordinary sulphur exists as
EASY
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 7
Bauxite is the most important ore of
EASY
10th CBSE
IMPORTANT
Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 1
_____ is the most abundant metal in the earth’s crust. (Calcium/ Aluminium)