Sawaal

 Chemistry Questions

Popular Latest Rated
Q:

Factors that may influence enzyme activity?

 

A) pH B) Substrate concentration
C) Temperature D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 52114
Q:

What is formed when helium atom loses one electron?

 

A) Proton B) Positive helium ion
C) Negative helium ion D) Alpha particle
 
Answer & Explanation Answer: B) Positive helium ion

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 52098
Q:

Which of the following statements about the reaction below are INCORRECT?

2Pb + C → 2Pb + CO2


A. Carbon di-oxide is getting, oxidised
B. Lead is getting reduced
C. Carbon is oxidised
D. Lead oxide is getting reduced

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams

1 52041
Q:

Elements having same atomic numbers but different mass number are called ______.

 

 

A) isotones B) Isotopes
C) isomopes D) isobar
 
Answer & Explanation Answer: B) Isotopes

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 51883
Q:

Group 8A of the periodic table contains the

 

A) least reactive metals B) most reactive nonmetals
C) most reactive metals D) least reactive nonmetals
 
Answer & Explanation Answer: D) least reactive nonmetals

Explanation:

Helium (He), Neon(Ne), Argon(Ar), Krypton (Kr), Xenon (Xe), Radon (Rn) and Ununoctium (Uuo) are present group 8A.

 

They have fully filled orbitals and hence are most stable amongst all the elements in the periodic table and are considered as least reactive least reactive non-metals.

 

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 51864
Q:

Isobars are atoms of different chemical elements that have ______.

 

A) Same atomic number but different mass number B) Same mass number but different atomic number
C) Same mass number and same atomic number D) Different mass number and different atomic number  
 
Answer & Explanation Answer: B) Same mass number but different atomic number

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams

0 51725
Q:

Milk of Magnesia is used as a 

 

A) Laxative  B) Pain killer 
C) Sedative  D) Antibiotic
 
Answer & Explanation Answer: A) Laxative 

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 51610
Q:

The electronic dot and cross structure of ethene is ............

 

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT

0 51584