Answer: Peptic ulcer is caused by bacterium Helicobacter pylori. A simple definition of an ulcer is the appearance of a sore or painful wound.... View Article
Answer:Â Cotton The cotton crop is extremely vulnerable to pests and diseases. Cotton is vulnerable to moth pests like the Pink Bollworm, as well... View Article
Answer: An emulsion can be defined as a colloid consisting of two or more non-homogenous type of liquids wherein one of the liquid contains the... View Article
Answer: The time period of oscillation of a wave is defined as the time taken by any element of the string to complete one such oscillation. A... View Article
Answer: Gold, silver, platinum, etc occur in free state. Since Gold, Platinum and Silver are the least reactive metals, hence they are found in... View Article
Answer: Heat loss due to conduction is prevented by placing the calorimeter box in a well-lagged vessel using wool or cork material. Heat loss... View Article
Answer: Corrosion in case of iron is known as rusting. Rusting of iron refers to the formation of rust, a mixture of iron oxides, on the... View Article
Answer: Ionic compounds can be defined as the crystalline solids formed by neatly packed ions of opposite charge. Ionic compounds are usually... View Article
Answer: A homopolymer is defined as a polymer that has the same monomer unit in the chain. The addition polymers formed by the polymerisation of... View Article
Answer:Â Charles Edward Brown-Sequard In 1856, Charles Edward Brown-Sequard, a physician, made his first significant contribution to the field of... View Article
Answer: The least count of an instrument is the smallest measurement that can be taken accurately with it. The least count of a stop watch is... View Article
Answer: A tuning fork is made of an alloy of steel, nickel and chromium, called Elinvar. The material for which the elasticity does not... View Article
Answer: One Faraday is the charge carried by 1 mole of electrons which is 96485.34 Coulombs. The faraday constant can be expressed in terms of... View Article
Answer: The base has a bitter taste and a slippery texture. A base dissolved in water is called an alkali. When chemically reacting with acids,... View Article
With many other elements, carbon forms numerous compounds; these compounds are termed as carbon compounds. Methane (CH4) is the fundamental... View Article
Answer: Electrolytic refining method is used to refine impure metals. Electrolytic refining is a technique that is used for the extraction and... View Article
Answer:Â Acids turn blue litmus paper to red. Litmus paper is a type of paper that changes colour in response to the acidity of the solution it... View Article
There are 2 types of motion: Rotation and revolution. A rotation is a circular movement of an object around a centre of rotation. The spinning... View Article