A. All the metals are good conductor of electricity
B. All the metals are good conductor of heat
C. All the metals form positive ions
D. All the metals form acidic oxides
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Atom is the smallest particall which is_________?
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__________ is one of the allotropic modifications of carbon.
A. Indivisible
B. Divisible
C. Both
D. Non of these
Submitted by: Kamran khan
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When the radiation of light is passed through a prism, it undergoes __________?
A. Silicon
B. Diamond
C. Iodine
D. Graphite
Submitted by: Shumail Farhan
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Petra means ______ ?
A. reflection
B. interference
C. diffraction
D. refraction
Submitted by: Shumail Farhan
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The radiations with highest speed are _______.
A. Petrol
B. Sediment
C. Rock
D. Fuel
Submitted by: HASNAIN
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The radiations with negative charge are________.
A. Alpha radiations
B. Gamma radiations
C. Beta radiations
D. AOT
Submitted by: Aamir khan Hullio
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Which one of the following results in the discovery of proton.
A. Alpha radiations
B. Gamma radiations
C. Beta radiations
D. positron
Submitted by: Aamir khan Hullio
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Nitrate (NO3) ions are obtained by the process of __________?
A. Cathode rays
B. Canal rays
C. X-rays
D. Alpha rays
Submitted by: Babar Ali Kunbhar
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Hookworm is a parasitic worm that infects ______?
A. Nitrification
B. Fermentation
C. Denitrification
D. None of these
Submitted by: Sana
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