Email
Chat with tutor
logo

Ask Questions, Get Answers

X
 
Answer
Comment
Share
Q)

Which of the following statements regarding aluminium is not correct ?

$\begin {array} {1 1} (A)\;\text{Aluminium is a light metal with considerable strength} \\ (B)\;\text{Aluminium is a good conductor of heat and electricity} \\ (C)\;\text{ The corrosion of the aluminium metal is prevented by the formation of a coat of aluminium oxide on its layer} \\ (D)\;\text{Aluminium dissolves in hydrochloric acid but not in concentrated sodium hydroxide}c \end {array}$

1 Answer

Comment
A)
Answer : Aluminium dissolves in hydrochloric acid but not in concentrated sodium hydroxide
Aluminium dissolves both in $\text{HCL}$ and cone. $\text{NaOH}$
$2Al+6HCl \rightarrow Al_2Cl_3+3H_2$ and $2Al+2NaOH+6H_2O \rightarrow 2Na[Al(OH)_4]+3H_2O$
Hence option (D) is the correct answer.
Help Clay6 to be free
Clay6 needs your help to survive. We have roughly 7 lakh students visiting us monthly. We want to keep our services free and improve with prompt help and advanced solutions by adding more teachers and infrastructure.

A small donation from you will help us reach that goal faster. Talk to your parents, teachers and school and spread the word about clay6. You can pay online or send a cheque.

Thanks for your support.
Continue
Please choose your payment mode to continue
Home Ask Homework Questions
Your payment for is successful.
Continue
Clay6 tutors use Telegram* chat app to help students with their questions and doubts.
Do you have the Telegram chat app installed?
Already installed Install now
*Telegram is a chat app like WhatsApp / Facebook Messenger / Skype.
...