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 one of the following substances does not have a melting point

A) bromine B) sodium chloride
C) mercury D) glass
 
Answer & Explanation Answer: D) glass

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

68 19859
Q:

Which one of the following mixture is homogeneous

A) starch and sugar B) methanol and water
C) graphite and charcoal D) calcium carbonate and calcium bicarbonate
 
Answer & Explanation Answer: B) methanol and water

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

76 18973
Q:

Which of the following is an element

A) alumina B) brass
C) graphite D) silicon
 
Answer & Explanation Answer: D) silicon

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

0 3735
Q:

Among the given nutrients, milk is a poor source of

A) Calcium B) Protein
C) Vitamin C D) Carbohydrates
 
Answer & Explanation Answer: C) Vitamin C

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

178 32118
Q:

Which one of the following is not a mixture

A) air B) mercury
C) milk D) cement
 
Answer & Explanation Answer: B) mercury

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

179 33468
Q:

' Misch metal ' is widely used in manufacture of which of the following

A) Material of car brake B) Smoke detectors
C) Cigarette lighters D) Emergency lights
 
Answer & Explanation Answer: C) Cigarette lighters

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

49 15949
Q:

The isotopes of chlorine with mass number 35 and 37 exist in the ratio of

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

78 14133
Q:

A gas is found to have the formula . Its vapour density is 70.The value of n must be

A) 5 B) 4
C) 9 D) 6
 
Answer & Explanation Answer: A) 5

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

3 3904