A: Polymethyl methacrylate is also known as plexi glass.
R: PMMA is used in decorative articles.

Both A and R are correct and R is the correct explanation of the A

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both A and R are correct but R is not the correct explanation of the A

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

A is correct but R is in correct

No worries! We‘ve got your back. Try BYJU‘S free classes today!

A is incorrect but R is correct

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D Both A and R are correct but R is not the correct explanation of the A
Polymethyl methacrylate is also known as plexi glass.
PMMA is polymethyl methaacrylate. It is an addition hopolymer of methyl methacrylate ( $C H_{2} = C (C H_{3}) C O O C H_{3}$ ).
PMMA is used in decorative articles, lenses, sign borads and aircraft windows.

Suggest Corrections

Similar questions

C e^{4 +}

C e^{4 +}

+ 3

N a^{+}, K^{+}

N a^{+}

K^{+}

L a

In this question, an Assertion (A) is followed by a corresponding Reason (R). Choose the appropriate option.

Assertion (A): In $C s C l$ crystal, the coordination number of $C s^{\oplus}$ ion is 8.

Reason (R): $C l^{⊖}$ ions in $C s C l$ adopt bcc type of packing.

s

H

ψ^{2}

ψ \propto e^{- Z r / 2 a_{0}}

Join BYJU'S Learning Program