Sawaal

 Chemistry Questions

Popular Latest Rated
Q:

Given in the options are sets of particular characteristics of elements and how they vary across the period and down the group in the following format:

 

Characteristic of an element  -  Across the period  -  Down the group

 

 

A) Electropositive Character/metallic character - Increase - Decrease B) Electropositive Character/metallic character - Increase - Increase
C) Electropositive Character/metallic character - Decrease - Increase D) Electropositive Character/metallic character - Decrease - Decrease
 
Answer & Explanation Answer: C) Electropositive Character/metallic character - Decrease - Increase

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 539
Q:

One should use porcelain and not metal containers in a microwave oven because..

A) Charge may accumulate on the metal surface and there is danger of getting a shock B) Porcelain vessels are better conductors of heat and thus food gets cooked quickly
C) Metal containers might undergo chemical reaction leading to spoilage of food D) Porcelain vessels are cheaper than the metal containers
 
Answer & Explanation Answer: A) Charge may accumulate on the metal surface and there is danger of getting a shock

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams

0 528
Q:

Rupee 5 and 10 coins are now made of

A) Ferritic stainless steel B) Silver and steel
C) Cupro nickel alloy D) Copper and brass
 
Answer & Explanation Answer: C) Cupro nickel alloy

Explanation:

The copper nickel alloys composed of copper with 25% nickel with 0.05-0.4% manganese is commonly used for the manufacture of coins, medals and other semi valuable applications.

 

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 517