XtraStudy Header

⁞ Chemistry

General Science ➤ Chemistry ➤ 1
Question 11
Q11.  Organic Compounds are
 

Answer :  Covalent compounds


Organic compounds are always Covalent compounds because it is more energetically favorable for carbon to covalently bond. Organic compounds such as Carbohydrates, lipids, proteins and nucleic acids, are all examples of covalent compounds.
⚔ DISCUSS

Question 12
Q12.  The pollutant responsible for ozone holes is
 

Answer :  CFC


Chloroflurocarbons (CFCs) have been held responsible for the depletion of ozone layer. The manufacture of CFCs has been phased out under the Montreal Protocol, and they are replaced with other products such as HFCs.
⚔ DISCUSS

Question 13
Q13.  The alkaloid naturally found in coffee, cocoa and cola nut is
 

Answer :  Caffeine


Caffeine (C8H10N4O2) is a bitter alkaloid found specially in coffee, tea, cacao, and cola nuts. It is used medicinally as a stimulant and diuretic.
⚔ DISCUSS

Question 14
Q14.  The metals used for making aircrafts and rockets is
 

Answer :  Nickel


Nickel-based super alloys are an unusual class of metallic materials with an exceptional combination of high temperature strength, toughness, and resistance to degradation in corrosive or oxidizing environment. These materials are widely used in aircraft and power generation turbines, rocket engines, etc.
⚔ DISCUSS

Question 15
Q15.  The process of improving the quality of rubber by heating it with sulphur is called
 

Answer :  Vulcanization


Vulcanization is a chemical process for converting natural rubber into more durable materials via the addition of sulphur or other equivalent curatives or accelerators. These additives modify the polymer by forming cross-links (bridges) between individual polymer chains.
⚔ DISCUSS

Comments
Comments (0)


XtraStudy
Explore
Explore
About
App Link
xtrastudy android app
Others

Earn While You Learn
FAQ

Register Now

© 2022 Company, Inc. All rights reserved.