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Q:

An element X forms an oxide XO_{_{3}}, what ihe valency of X

A) 1 B) 2
C) 3 D) 6
 
Answer & Explanation Answer: D) 6

Explanation:
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Filed Under: Chemistry

Q:

Which one of the following elements is the poorest conductor of heat

A) sodium B) lead
C) zinc D) mercury
 
Answer & Explanation Answer: B) lead

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Filed Under: Chemistry

Q:

Which one among the following is the heaviest

A) 1 mole of water molecules B) 1 mole of ammonia molecules
C) 1 mole of sodium atoms D) 1 mole of hydrogen molecules
 
Answer & Explanation Answer: C) 1 mole of sodium atoms

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Filed Under: Chemistry

Q:

Which one of the following substances does not have a melting point

A) bromine B) sodium chloride
C) mercury D) glass
 
Answer & Explanation Answer: D) glass

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Filed Under: Chemistry

Q:

Which one of the following mixture is homogeneous

A) starch and sugar B) methanol and water
C) graphite and charcoal D) calcium carbonate and calcium bicarbonate
 
Answer & Explanation Answer: B) methanol and water

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Q:

Which of the following is an element

A) alumina B) brass
C) graphite D) silicon
 
Answer & Explanation Answer: D) silicon

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Filed Under: Chemistry

Q:

Among the given nutrients, milk is a poor source of

A) Calcium B) Protein
C) Vitamin C D) Carbohydrates
 
Answer & Explanation Answer: C) Vitamin C

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Filed Under: Chemistry

Q:

Jackie deposits $325 in an account that pays 4.1% interest compounded annually. How much money will Jackie have in her account after 3 years?

A) 346.64 B) 356.64
C) 366.64 D) 376.64
 
Answer & Explanation Answer: C) 366.64

Explanation:

A=P(1+r)^t

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Filed Under: Compound Interest
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