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An element is made up of atoms, all having the:
Answer: B. Same atomic numbers An element is made up of atoms, all having the same atomic numbers.
Answer: B. Same atomic numbers
An element is made up of atoms, all having the same atomic numbers.
See lessLPG (liquefied petroleum Gas) is a_______.
Answer: A. Mixture LPG is a mixture.
Answer: A. Mixture
LPG is a mixture.
See lessTooth decay start when the pH of the mouth is:
Answer: C. Less than 5.5 Tooth decay starts when the pH of the mouth is less than 5.5 .
Answer: C. Less than 5.5
Tooth decay starts when the pH of the mouth is less than 5.5 .
See lessThe elements present in any one group have the same_________ .
Answer: B. Number of valence electrons The elements present in any one group have the same number of valence electrons.
Answer: B. Number of valence electrons
The elements present in any one group have the same number of valence electrons.
See lessWhich of the following compounds does not possess water of crystallization?
Answer: A. Baking soda Baking soda does not possess water of crystallization.
Answer: A. Baking soda
Baking soda does not possess water of crystallization.
See lessGroup 1 elements are called _______.
Answer: B. Alkali metals Group 1 elements are called alkali metals.
Answer: B. Alkali metals
Group 1 elements are called alkali metals.
See lessElectric bulbs are usually filled with chemically inactive gases like________.
Answer: C. Nitrogen Electric bulbs are usually filled with chemically-inactive gases like nitrogen.
Answer: C. Nitrogen
Electric bulbs are usually filled with chemically-inactive gases like nitrogen.
See lessGold is mixed with copper to:
Answer: B. Make gold hard Gold is mixed with copper to make gold hard.
Answer: B. Make gold hard
Gold is mixed with copper to make gold hard.
See lessWhat are the constituents of bronze?
Answer: B. Cu+Sn Cu+sn are the constituents of bronze.
Answer: B. Cu+Sn
See lessCu+sn are the constituents of bronze.
___________ are comparatively poor conductors of heat.
Answer: D. Pb and Hg Pb and Hg are comparatively poor conductors of heat.
Answer: D. Pb and Hg
Pb and Hg are comparatively poor conductors of heat.
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