Which among the following are constituents of Brass? [A]Zinc and Copper [B]Iron and Zinc [C]Copper and Nickel [D]Iron and Copper Show Answer Zinc and Copper
Which among the following methods can be used to remove the permanent hardness in water due to calcium or magnesium sulphates? [A]Sulphonate method [B]Nitrate method [C]Zeolite method [D]None...
Which among the following acids is abundant in Grapes, Bananas and Tamarind? [A]Lactic Acid [B]Oxalic Acid [C]Salicylic Acid [D]Tartaric Acid Show Answer Tartaric Acid
Which among the following gas was leaked at Bhopal during the Bhopal gas tragedy at 2-3 December 1984? [A]Methyl isocyanide [B]Methyl isocyanate [C]Methyl isochloride [D]Methyl isochlorate Show Answer...
In which among the following categories, Radon (Rn) can be placed? 1. Radioactive Element 2. Inert Gas 3. Noble Gas Choose the correct option: [A]Only 1 [B]1 &...
When a tubelight breaks, a cracking sound is produced because ____? [A]Pressure inside the lamp is less than atmospheric pressure [B]Pressure inside the lamp is more than atmospheric...
Which among the following is the objective of the Methyl tert-butyl ether (MTBE) mixing with Petroleum? [A]Raise Octane Number [B]Antioxidant Stabilizer [C]Lead Scavanger [D]Fuel Dye Show Answer Raise...
The most important contributor of sea salt is ____? [A]Rivers [B]Salty Rocks at bottom of sea [C]Aquatic animals in Sea [D]Atmosphere around sea Show Answer Rivers
Which among the following is an example of a Chemical Change? [A]Rusting of iron [B]Magnetisation of iron [C]Melting of iron [D]Heating of iron Show Answer Rusting of iron
Which among the following elemtns are generally find in free state? [A]Group 11 elements [B]Group 12 elements [C]Group 13 elements [D]Group 14 elements Show Answer Group 11 elements
