Science Chemistry MCQ-192

General Science-Chemistry Practice Questions for UPPSC, NDA, CivilsPrelims, RBI, CDS, UPSC, SSC, JPSC Exams

Which one of the following chemicals is used in Beauty Parlours for hair-setting?


Which one of the following polymeric materials is used for making bulletproof jacket?


The light emitted by firefly is due to


Which of the following statements about the commonly used automobile battery are true?

It is usually a lead-acid battery.
It has six cells with a potential of 2 Volt each.
Its cells work as Galvanic Cells while discharging power.
Its cells work as electrolytic cells while recharging.

Select the correct answer using the codes given below:


The iron layered with zinc is called


Bronze is an alloy of


Which of the following is chiefly present in LPG (Liquefied Petroleum Gas)?


Which one of the following is left when an hydrogen atom loses its electron?


Deep blue colour is imparted to glass by the presence of


Which of the following fibres is least prone to fire?


Which of the following alloys is used for making magnets?


Drying oils contain a fairly large proportion of


What is the most common salt in sea water?


In mirrors the back surface is coated with a thin layer of


When quick lime is added to water


Baking soda is


The gas which is believed to be the main cause of explosion in the coal mines is


Which of the following is a supe rcooled liquid?


Which of the following is used to remove rust stains on Cloth?