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Home/chemistry exam questions/Page 60

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Deepanjali
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Asked: August 2, 2021In: Chemistry

___________ have six carbon atoms and six hydrogen atoms.

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A. Propene B. Chloropropene C. Propyne D. Benzene

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___________ allotrope, carbon atoms are arranged in the shape of a football.

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A. C-50 B. C-30 C. C-40 D.C-60

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_________ is used as a fuel in cars with petrol.

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A chemical reaction in which heat is generated is called a/an_________.

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The bonds formed by the elements having larger atoms are:

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Asked: August 2, 2021In: Chemistry

Magnesium ribbon burns with a dazzling ________ flame.

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A. Blue B. Red C. White D. Green

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Asked: August 2, 2021In: Chemistry

Which of these is not an alkaline earth metals?

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Asked: August 2, 2021In: Chemistry

Who classified elements based on atomic numbers?

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Asked: August 2, 2021In: Chemistry

The atomic number of Lanthanum is________.

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A. 56 B. 58 C. 55 D. 57

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Asked: August 2, 2021In: Chemistry

_________ proposed that each element had a characteristics atomic mass.

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A. Kanad B. Democritius C. Dalton D. Lavoisier

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