The document contains a chemistry quiz with questions about various chemical elements, compounds, and materials - including the measure of radioactivity (curie), the gas inside light bulbs (argon), the universal solvent (water), the liquid metal at room temperature (mercury), and the densest known gas (radon). It asks about the constituents of natural gas and petroleum, metals, acids, alloys, and other substances commonly found in batteries, antiseptics, poisons, and drinks.

1. CHEMISTRY QUIZ
· Which is the measure of radio activity? A: curie
· Which gas is filled in electric bulb? A: Argon
· Which substance is known as super liquid? A: Liquid helium
· Which is the constituent of natural gas? A: Methane
· Which is the universal solvent? A: Water
· Which metal is a liquid at 25 degree? A: Mercury
· Which is an artificial metal made by man? A: Americium
· Which chemical is used for rat poison? A: Zinc phosphate
· Which is the sublimating element? A: Iodine
· Which element is highly present in sea cucumber? A: Vanadium
· Which are two metals kept in kerosene? A: Sodium &Potassium
· Which metal has the highest density? A: Osmium
· Which is the solvent of wax? A: Turpentine
· Which metal is extracted from alluvial gravel? A: Gold
· Which gas was discovered from total solar eclipse? A: Helium
· Which metal is obtained from crude oil? A: Paraffin wax
· Which element in used as an antiseptic? A: Iodine
· Which acid is commonly used in batteries for cars? A: Sulphuric
acid

2. · Which is the densest gas? A: Radon
· Which drug is present in cola drink? A: Caffeine
· Which is the alloy of bronze? A: Tin & Copper
· Which is the primary fuel? A: Petroleum
· Which is the common form of coal? A: Lignite
· Which is the largest atom? A: Francium