Sawaal
13
Q:

Which of the following reactions are exothermic?

 

1)   C + O2  → CO22)  2Mg + O2  → 2MgO3)  CuSO4 + 5H2O  → CuSO4.5H2O4)  All the above

A) 1 B) 2
C) 3 D) 4

Answer:   D) 4



Explanation:

Here all the given options are Exothermic reactions. Exothermic reactions are those reactions which involves the release of heat.

 

Generally all the combining reactions are exothermic in nature.

Subject: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO
Related Questions
Q:

Which of the following elements has the lowest melting point?

A) Platinum B) Carbon
C) Cobalt D) Krypton
 
Answer & Explanation Answer: D) Krypton

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 998
Q:

Which of these is not a macronutrient for Plants?

A) Nitrogen B) Phosphorus
C) Potassium D) Chlorine
 
Answer & Explanation Answer: D) Chlorine

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 882
Q:

Which compound is used in Anti-malarial drug?

A) Aspirin B) Neosporin
C) Chloroquin D) Antacid
 
Answer & Explanation Answer: C) Chloroquin

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 816
Q:

Sphalerite is an ore/mineral of

A) Mercury B) Molybdenum
C) Silver D) Zinc
 
Answer & Explanation Answer: D) Zinc

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 747
Q:

Pentane has _____ structural isomers.

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 883
Q:

Glass is also called ________.

A) Supercooled liquid B) Super liquid
C) Ideal liquid D) Distilled liquid
 
Answer & Explanation Answer: A) Supercooled liquid

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 998
Q:

Magnetite is an ore/mineral of

A) Beryllium B) Chromium
C) Iron D) Lead
 
Answer & Explanation Answer: C) Iron

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

2 937
Q:

Which among the following is used in making liquors, medicines and as a fuel in aircrafts?

A) Propyl alcohol B) Dimethyl alcohol
C) Ethyl alcohol D) Methyl alcohol
 
Answer & Explanation Answer: C) Ethyl alcohol

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 1697