Question

Pyrex glass is obtained by fusing together......... 

(A) 60 to 80% Al₂O₃, 10 to 25% SiO₂ and remaining amount of B₂O₃

(B) 60 to 80% B₂O₃, 10 to 25% Al₂O₃ and remaining amount of SiO₂

(C) 60 to 80% SiO₂, 10 to 25% B₂O₃ and remaining amount of Al₂O₃

(D) 60 to 80% SiO₂, 10 to 25% Al₂O₃ and remaining amount of B₂O₃

Answer 1

Correct answer is: (C) 60 to 80% SiO₂, 10 to 25% B₂O₃ and remaining amount of Al₂O₃