2
Q:

Methane contributes towards global warming so it is called a _________________ gas.

 

A) poisonous B) carcinogenic
C) infectious D) greenhouse

Answer:   D) greenhouse



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

What was the element used in traditional thermometers which is highly toxic in nature?

A) Carbon B) Mercury
C) Arsenic D) Cadmium
 
Answer & Explanation Answer: B) Mercury

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

2 729
Q:

30 litres of salt solution contains 5% salt. How many litres of water must be added so as to get a resultant solution containing 3%salt?

A) 20 litres B) 25 litres
C) 30 litres D) 35 litres
 
Answer & Explanation Answer: A) 20 litres

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1088
Q:

What is the name of the process where gas is directly converted to solids called?

A) Sublimation B) Deposition
C) Condensation D) Evaporation
 
Answer & Explanation Answer: B) Deposition

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

2 778
Q:

Non-metallic character increases from ____.

A) Magnesium to Barium B) Potassium to Caesium
C) Oxygen to Selenium D) Sodium to Chlorine 
 
Answer & Explanation Answer: D) Sodium to Chlorine 

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 671
Q:

15% of an alloy was silver. If in a quantity of alloy there was 51 g of silver, what was the quantity of the other elements in the alloy?

A) 204 g B) 340 g
C) 300 g D) 289 g
 
Answer & Explanation Answer: D) 289 g

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 749
Q:

CuO + H2 ---> Cu + H2O. This equation is an example of

A) Oxidation B) Decomposition
C) Reduction D) Redox
 
Answer & Explanation Answer: D) Redox

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 781
Q:

Atomic mass of Nitrogen is 14 and that of Hydrogen is 1. What will be the molecular mass of Ammonia?

A) 18 B) 17
C) 16 D) 15
 
Answer & Explanation Answer: B) 17

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

1 735
Q:

Lime water turns milky when carbon dioxide is passed through it. It is due to the formation of

A) Calcium Carbonate B) Barium Carbonate
C) Calcium Hydrogen Carbonate D) Calcium Oxide
 
Answer & Explanation Answer: A) Calcium Carbonate

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 1116