Challenger App

No.1 PSC Learning App

1M+ Downloads
Which of the following pairs is not correctly matched?

AHaematite - copper

BBauxite - aluminium

CMonazite-thorium

DPitchblende - Uranium

Answer:

A. Haematite - copper


Related Questions:

RMS value of current is i=10+5 cos (628 t + 60°) :
A chain is made up of mild steel or galvanized iron wire of diameter:
"Two Leaves and a Bud" is the work of
Groynes are used for
The periodicity with which rapid sand filters need cleaning is usually: