Chemistry Questions

Q:

Which of the following is the most common kidney stone-forming compound?

A) Calcium oxalate B) Magnesium oxide
C) Sodium bicarbonate D) Magnesium citrate
 
Answer & Explanation Answer: A) Calcium oxalate

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Q:

Which of the following is used to get relief when you have been stung by a honeybee?

A) Common salt B) Baking soda
C) Acetic acid D) Washing soda
 
Answer & Explanation Answer: B) Baking soda

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Q:

In the modern periodic table, which of the two periods contain 8 elements each?

A) 4 and 5 B) 3 and 4
C) 1 and 2 D) 2 and 3
 
Answer & Explanation Answer: D) 2 and 3

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Q:

Which of the following gases is liberated when Sodium Hydrogen Carbonate is heated?

A) Carbon Monoxide B) Carbon Dioxide
C) Oxygen D) Hydrogen
 
Answer & Explanation Answer: B) Carbon Dioxide

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Q:

The maximum number of electrons that can be accommodated in a shell is indicated by the formula

A) 2n-2 B) 2n3
C) 2n D) 2n2
 
Answer & Explanation Answer: D) 2n2

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Q:

Which of the following metals is the most Malleable?

A) Al B) Zn
C) Na D) Ag
 
Answer & Explanation Answer: C) Na

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Q:

Which term describes an enzyme?

A) reactant B) catalyst
C) substrate D) product
 
Answer & Explanation Answer: B) catalyst

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Q:

The pH value increase from 7 to 14 represents a

A) decrease in H+ ion concentration B) decrease in OH- ion concentration
C) increase in OH- ion concentration D) increase in H+ ion concentration
 
Answer & Explanation Answer: C) increase in OH- ion concentration

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