Everyday Science MCQs

A. Radium B. Platinum C. Uranium D. Cadmium

A. Promethium B. Ununoctium C. Francium D. Technetium Ununoctium is the heaviest element, but it is man-made. The heaviest naturally-occurring element is uranium (atomic number 92, atomic weight 238.0289).

A. Stroboscope B. Heliograph C. Solograph D. None of these

A. Nitrogen Peroxide B. Ethyl Mercaptan C. Carbon Monoxide D. Sulphur Dioxide LPG gas is basically propane and butane, and it is odorless in its natural state. The smell that you notice when there is a leak is actually of an entirely different agent, called Ethyl Mercaptan. This substance is added to the gas when … Read more

A. Micro Organism B. Plants C. Human D. Pollution

A. Reverse Osmosis B. Osmosis C. Cytolysis D. Turgor Pressure Reverse osmosis is a water purification process that uses a partially permeable membrane to remove ions, unwanted molecules and larger particles from drinking water.

A. Lithium B. Sodium C. Magnesium D. Aluminium The lightest or least dense metal that is a pure element is lithium, which has a density of 0.534 g/cm3. This makes lithium nearly half as dense as water, so if lithium was not so reactive, a chunk of the metal would float on water.

A. Methyl Mercury B. Lead C. Salmonella D. Perchlorate

A. Metabolism B. Conservation C. Incineration D. Composting

A. E.coli B. Phytoplankton C. Amoeba D. Salmonella