Sawaal

 Chemistry Questions

Popular Latest Rated
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:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 958
Q:

Among chemical properties, Mendeleev concentrated on the compounds formed by the elements with

A) Hydrogen and Oxygen B) Hydrogen and Sodium
C) Carbon and Hydrogen D) Carbon and Sodium
 
Answer & Explanation Answer: A) Hydrogen and Oxygen

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams

0 958
Q:

___________ is obtained by evaporation of sea.

A) Sugar B) Iron
C) Salt D) Steel
 
Answer & Explanation Answer: C) Salt

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 956
Q:

Phosphorus is kept in water because

A) its ignition temperature is very high B) its ignition temperature is very low 
C) its critical temperature is high D) its critical temperature is low
 
Answer & Explanation Answer: A) its ignition temperature is very high

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

4 955
Q:

Oxygen molecule is ______.

A) Monoatomic B) Diatomic
C) Triatomic D) Polyatomic
 
Answer & Explanation Answer: B) Diatomic

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 955
Q:

What  is  the  number  of  atoms  in  46  g  of sodium-23 (N = Avogadro constant)?

A) N/2 B) N
C) 2N D) 23 N
 
Answer & Explanation Answer: C) 2N

Explanation:
Number of atoms in 46 grams of sodium - 23 will be 2N.
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 954
Q:

Limestone is a raw material used by which industry?

A) Aluminium B) Fertilizers
C) Cement D) Petrochemicals
 
Answer & Explanation Answer: C) Cement

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 954
Q:

Fire extinguishers emit which gas?

A) Carbon monoxide B) Chlorine
C) Carbon dioxide D) Nitrogen
 
Answer & Explanation Answer: C) Carbon dioxide

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 952