Copper
Silver
Gold
Platinum
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Answer : Option A
Explanation :
All except Copper are metals used to make jewellery.
Sandstone
Basalt
Granite
Pumice
All except Sandstone are igneous rocks formed by cooling down of magma, while sandstone is a sedimentary rock.
Fingers
Palm
Knee
Wrist
Answer : Option C
All except Knee are parts of hand.
Hypothesis
Assumption
Observation
Experiment
Answer : Option D
All others are parts of experiment.
District
Town
Metropolis
State
All others are parts of a State.
Broker
Salesman
Customer
Hawker
All others earn from the customer.
Brass
Bronze
Steel
German silver
All except Steel are alloys of copper.
Disperse
Aggregate
Congregate
Accumulate
All except Disperse are synonyms of 'Collect'.
Volt
Power
Volume
Force
All except Volt are physical quantities, while volt is a unit of measurement.
Graphite
Pearl
Diamond
Coal
Answer : Option B
All except Pearl are different forms of carbon.