2
Q:

Which process usually requires water?

A) Physical weathering B) Mass wasting
C) Chemical weathering D) Erosion

Answer:   C) Chemical weathering



Explanation:

Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occur particularly when the water is slightly acidic.

Subject: Chemistry
Exam Prep: Bank Exams
Q:

Baking soda is used ______.

 

I. for making baking powder

II. in soda-acid fire extinguishers

III. to neutralize excess acid in the stomach

 

A) Only I and II B) Only I and III
C) Only II and III D) All I, II and III
 
Answer & Explanation Answer: D) All I, II and III

Explanation:
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0 1
Q:

Which of the following is NOT a nucleon?

A) Proton B) Electron
C) Neutron D) No option is correct
 
Answer & Explanation Answer: B) Electron

Explanation:
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0 2
Q:

Which of the following represents an ion?

A) a particle having 9 protons, 9 neutrons, and 10 electrons B) a particle having 19 protons, 21 neutrons, and 19 electrons
C) a particle having 14 protons, 14 neutrons, and 14 electrons D) a particle having 1 proton, 3 neutrons, and 1 electron
 
Answer & Explanation Answer: A) a particle having 9 protons, 9 neutrons, and 10 electrons

Explanation:
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0 19
Q:

Which electron dot formula represents a polar molecule?

A) A B) B
C) C D) D
 
Answer & Explanation Answer: B) B

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0 32
Q:

Which molecule contains a polar covalent bond?

A) NBr3 B) C2H4
C) ZnS D) AgL
 
Answer & Explanation Answer: A) NBr3

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0 39
Q:

A standard drink is generally

A) 5 oz Glass of Wine B) 12 oz Beer    
C) 1.5 oz of Hard Liquor D) All the above
 
Answer & Explanation Answer: D) All the above

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0 100
Q:

What is the other name of sodium carbonate?

A) Baking soda B) Washing soda
C) Baking powder D) No option is correct
 
Answer & Explanation Answer: B) Washing soda

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0 62
Q:

What is the ratio of masses of hydrogen and oxygen in the water?

A) 1 : 4 B) 1 : 8
C) 1 : 16 D) 1 : 64
 
Answer & Explanation Answer: B) 1 : 8

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