Answer: The blue vitriol is also known as the Cu(II) sulphate pentahydrate or crystalline copper sulphate. The chemical formula for blue... View Article
Answer: The phases stated above are different stages in the human, animal, and plant life cycles. Every organism has a lifespan during which it... View Article
Answer: (2) Greenhouse gases are the gases that absorb the infrared radiations and create a greenhouse effect. Greenhouse effect is the process... View Article
Answer: (3) Rain water The purest source of natural water is Rainwater. The rainwater directly comes from the condensation of water in the... View Article
Answer: When the digesting process begins, the activation of parietal cells in the gastric gland by the combined action of acetylcholine and... View Article
Answer: (4) Paleontology is the research of Earth's life history focused on fossils. Â It is one of the historical sciences that aims to describe... View Article
Answer: Bacille Calmette-Guerin The full form of BCG is Bacille Calmette-Guerin. BCG is a weakened form of a bacteria called Mycobacterium bovis... View Article
Answer: The cell constant depends on the area of the electrodes, distance between the electrodes and the nature of the electric field between... View Article
Answer: Light rays that are parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after... View Article
Answer: Peptization is the method of producing stable colloids using an electrolyte to split up and distribute a precipitate into the colloids.... View Article
Answer: (2)Â 13 to 20 days The three main groups of blood cells are erythrocytes (RBC), leucocytes (WBC), and platelets. Leukocytes are often... View Article
Answer: (1) An oxygen atom has 6 electrons in which two of them are bonded with a hydrogen atom leaving two lone pairs of electrons. Due to the... View Article
Answer: (3) Let length of the room = l Highty of the room = h Breadth of the room = b Given h : l = 2 : 5 h : b = 4 : 5 ∴ h : l : b = 4 :... View Article
Answer: DDT = Dichloro-Diphenyl Trichloroethane DDT is a colourless, tasteless and odourless organic compound used as an insecticides or... View Article
Answer: H2S2O7 Oleum or sulfuric acid fuming is a solution of various sulfuric trioxide compounds in sulfuric acid or often called as disulfuric... View Article
Answer: Electrolytic refining is the method of using electricity to refine impure metals. In this process, the anode is made of impure metal,... View Article
Answer: The chemical formula of Epsom salt is Magnesium sulfate. Magnesium sulfate is an inorganic salt with the chemical formula MgSO4(H2O)x... View Article
Answer: (2) Ascorbic acid is the chemical term for vitamin C. The name, ascorbic acid, is derived from the disease (meaning no) and scorbutus... View Article
Answer: (2) The correct answer is (2) Polyethene Non-Biodegradable waste is one that has not been able to break down or degrade for several... View Article
