Sawaal
1
Q:

In modern periodic table while going from top to bottom in a group ______.

 

A) size of an atom increases B) size of an atom decreases
C) ionisation energy of an atom increases D)  size and ionisation energy of an atom increases

Answer:   D)  size and ionisation energy of an atom increases



Explanation:
Subject: Chemistry
Exam Prep: Bank Exams
Related Questions
Q:

Which of the following gases is not generated in a biogas plant?

A) H2S B) CO2
C) CH4 D) CO
 
Answer & Explanation Answer: D) CO

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 1327
Q:

Who among the following laid the foundation of chemical sciences by establishing two important laws of chemical combination?

A) Joseph L. Proust B) Antoine L. Lavoisier
C) Ernest Rutherford D) Democritus
 
Answer & Explanation Answer: B) Antoine L. Lavoisier

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 988
Q:

Chlorine gas is used in the manufacture of:

A) Baking powder B) Bleaching powder
C) Baking soda D) Washing soda
 
Answer & Explanation Answer: B) Bleaching powder

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 1787
Q:

If the atomic number of Krypton is 36, then its electronic configuration is:

A) 2,8,18,8 B) 2,8,20,6
C) 2,18,16 D) 2,18,8,8
 
Answer & Explanation Answer: A) 2,8,18,8

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1190
Q:

The main cause of rancidity in foods is the ____ of fats and oils.

A) hydrolysis B) clarification
C) reduction D) oxidation
 
Answer & Explanation Answer: D) oxidation

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1876
Q:

Which of the following is essential for the synthesis of thyroxin?

A) Potassium B) Calcium
C) Iodine D) Sodium
 
Answer & Explanation Answer: C) Iodine

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1001
Q:

An ∝ particle is _____.

A) A hydrogen molecule B) A helium nucleus
C) An atom of hydrogen D) A proton
 
Answer & Explanation Answer: B) A helium nucleus

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

2 1378
Q:

A proton is identical to _____.

A) the nucleus of helium B) the nucleus of a hydrogen atom
C) an alpha-particle D) a beta particle
 
Answer & Explanation Answer: D) a beta particle

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

3 2215