Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 8 Answered

which of the following element will produce oxide which are acidic in nature? A)carbon B)calcium C)magnesium D)copper when a vessel is exposed to moist air, it forms green coating on the surface. The vessel must be made of A)zinc B)copper C)magnesium D)iron
Asked by nmsnirajsheth | 22 Oct, 2017, 06:58: PM
answered-by-expert Expert Answer
Acidic oxide are complex chemical substances which forms a salt with chemical reaction with bases or basic oxides and it do not react with acids or acidic oxides.
In this case oxides of calcium and magnesium are basic in nature and oxides of copper are amphoteric in nature.
only oxides of carbon are acidic.
 
second question you asked is related to corrosion. 
copper forms a green deposite of basic copper carbonate, when exposed to moist air.
Answered by Ramandeep | 23 Oct, 2017, 10:01: AM

Application Videos

Concept Videos

CBSE 8 - Science
Asked by roginisrini | 08 Jul, 2022, 06:33: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
Asked by rajnishkumar.alok108 | 13 Sep, 2021, 08:04: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
Asked by mansisingh | 06 Aug, 2021, 04:03: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
Asked by computer.network149 | 14 Feb, 2020, 05:24: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
Asked by Shashanktripathi29.06.2006 | 29 May, 2019, 07:10: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
Asked by Topperlearning User | 30 Apr, 2014, 03:25: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
Asked by Topperlearning User | 01 Sep, 2014, 11:19: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
Asked by Topperlearning User | 30 Apr, 2014, 03:24: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
Asked by Topperlearning User | 30 Apr, 2014, 03:24: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Science
Asked by Topperlearning User | 22 Dec, 2014, 11:05: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×