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___________ allotrope, carbon atoms are arranged in the shape of a football.
Answer: D. C-60 C-60 allotrope, carbon atoms are arranged in the shape of a football.
Answer: D. C-60
C-60 allotrope, carbon atoms are arranged in the shape of a football.
See less_________ is used as a fuel in cars with petrol.
Answer: A. Ethanol Ethanol is used as a fuel in cars with petrol.
Answer: A. Ethanol
Ethanol is used as a fuel in cars with petrol.
See lessA chemical reaction in which heat is generated is called a/an_________.
Answer: D. Exothermic reaction A chemical reaction in which heat is generated is called an exothermic reaction.
Answer: D. Exothermic reaction
A chemical reaction in which heat is generated is called an exothermic reaction.
See lessThe bonds formed by the elements having larger atoms are:
Answer: B. Very weak The bonds formed by the elements having larger atoms are very weak.
Answer: B. Very weak
The bonds formed by the elements having larger atoms are very weak.
See lessMagnesium ribbon burns with a dazzling ________ flame.
Answer: C. White Magnesium ribbon burns with a dazzling white flame.
Answer: C. White
Magnesium ribbon burns with a dazzling white flame.
See lessWhich of these is not an alkaline earth metals?
Answer: C. Potassium Potassium is not an alkaline earth metal.
Answer: C. Potassium
Potassium is not an alkaline earth metal.
See lessWho classified elements based on atomic numbers?
Answer: B. Moseley Moseley was classified elements based on atomic numbers.
Answer: B. Moseley
Moseley was classified elements based on atomic numbers.
See lessThe atomic number of Lanthanum is________.
Answer: D. 57 The atomic number of Lanthanum is 57.
Answer: D. 57
The atomic number of Lanthanum is 57.
See less_________ proposed that each element had a characteristics atomic mass.
Answer: C. Dalton Dalton proposed that each element had a characteristic atomic mass.
Answer: C. Dalton
Dalton proposed that each element had a characteristic atomic mass.
See lessThe word ‘mole’ was introduced around 1896 by:
Answer: B. Wilhelm Ostwald The word 'mole' was introduced around 1896 by Wilhelm Ostwald.
Answer: B. Wilhelm Ostwald
The word ‘mole’ was introduced around 1896 by Wilhelm Ostwald.
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