Superior quality laboratory apparatus is made of the _____________ glass having low thermal co-efficient of expansion & high chemical resistance?

Related Mcqs:

Fermentation is adversely affected by the____________________?

A. Presence of air B. Absence of air C. High concentration D. Presence of ammonium salts...

Poly Vinyl Chloride (P.V.C.) is a ______________ material ?

A. Thermosetting B. Thermoplastic C. Fibrous D. Chemically active...

High purity nitrogen is used in__________________?

A. Making protective gas (95% N2 + 5% H2) for annealing of cold rolled steel strip coils B. Fire fighting purposes C. Both A. & B. D. Neither A. nor (B)...

Graphite is a/an________________________?

A. Electrical insulator B. Allotrope of carbon C. Moderator used in nuclear reactor D. Both B. and C....

Rosin soap is added during paper manufacture to____________________?

A. Impart adhesive properties B. Improve opacity C. Impart resistance to penetration by liquids D. None of these...