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:

___ is amphoteric in nature.

A) SO2 B) CaO
C) ZnO D) N2O
 
Answer & Explanation Answer: C) ZnO

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 862
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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 723
Q:

Which of the following metals cannot be easily cut with a knife?

A) Sodium B) Aluminium
C) Lithium D) Potassium
 
Answer & Explanation Answer: B) Aluminium

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 729
Q:

How are elements arranged in the Modern Periodic Table?

A) In the increasing order of their Molecular Mass B) In the increasing order of their Atomic Mass
C) In the increasing order of their Atomic Number D) In the increasing order of their Mass Number
 
Answer & Explanation Answer: B) In the increasing order of their Atomic Mass

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 594
Q:

Name the noble gas which is placed in the third period and eighth group of the Modern Periodic table.

A) Helium B) Argon
C) Neon D) Krypton
 
Answer & Explanation Answer: B) Argon

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 770
Q:

The chemical formula of Propane is

A) C3H8 B) C4H10
C) C2H6 D) CH4
 
Answer & Explanation Answer: A) C3H8

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams

1 785
Q:

What is C12H22O11 also known as

A) Sand B) Sugar
C) Salt D) Clay
 
Answer & Explanation Answer: B) Sugar

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 655
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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams

0 654