Chemistry Questions

Q:

Adding which substance gives blue colour to glass?

A) Manganese oxide B) Cobalt oxide
C) Chromium oxide D) Iron oxide
 
Answer & Explanation Answer: B) Cobalt oxide

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 1557
Q:

What is a normal pH level in blood?

A) 7.35 - 7.45 B) 7.45 - 7.55
C) 7.6 - 7.7 D) 7 - 7.10
 
Answer & Explanation Answer: A) 7.35 - 7.45

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

2 1556
Q:

Which is a compound that contains carbon?

A) Ethane B) Propane
C) Methane D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

The compound methane is a simple hydrocarbon contains one carbon bonded to four hydrogens. Ethane is a simple hydrocarbon which contains two carbon atoms and four hydrogen atoms. Similarly, propane with three carbons.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

2 1556
Q:

Which base is present in milk of magnesia?

A) Magnesium hydroxide B) Ammonium hydroxide
C) Sodium hydroxide D) Calcium hydroxide
 
Answer & Explanation Answer: A) Magnesium hydroxide

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1556
Q:

The salt concentration (measured as salinity in parts per thousand), is greater than _______ % in hypersaline lagoons.

A) 50 B) 100
C) 150 D) 200
 
Answer & Explanation Answer: B) 100

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 1554
Q:

Alcohol is more volatile than water because _________ is lower than water

A) its boiling point B) its density
C) its viscosity D) its surface tension
 
Answer & Explanation Answer: A) its boiling point

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

2 1553
Q:

Atoms of the same element can differ in

A) Atomic number B) Atomic mass
C) electrons D) None of the above
 
Answer & Explanation Answer: B) Atomic mass

Explanation:

Atoms of the same element can have same atomic number and number of electrons since, the atomic number is the number of protons and the number of protons and eectrons are the same in an element.

 

Hence, the atoms of the same element may differ in their atomic mass since it depends on the number of neutrons it holds and such atoms are called isotopes.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

1 1542
Q:

Which among the following is an endothermic reaction?

A) Respiration B) Combustion
C) Sweating D) Burning of natural gas
 
Answer & Explanation Answer: C) Sweating

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1542