(i) 30 Minutes To 1.5 Hours. The ratio of 30 minutes to 1.5 hours is 1:3. (ii) 55 Paise To Rs.1. The ratio of 55 paise to Rs.1 is 11:20... View Article
The correct answer is (B) Mesosome. The site of aerobic respiration in the bacterial cell wall is the mesosome. Explore more such questions and... View Article
The given statement is true. The pH of an aqueous solution of sodium acetate is more than 7. This is because, on hydrolysis, sodium acetate... View Article
The answer is (B) Nylon. Nylon is a synthetic fibre, which is strong, elastic and holds excellent abrasion resistance. Hence it is used for... View Article
The correct answer is (C) Conjugation. Spirogyra is free-floating green algae present in freshwater habitats such as ponds, lakes, etc.... View Article
The correct answer is (B) Two. Earthworms and fungi are the only decomposers of the pond ecosystem. Earthworms and fungi can grow in pond... View Article
Similar to iron, copper and brass materials also undergo corrosion, resulting in a greenish layer on this surface. To prevent this, the surface... View Article
The chemical formula of heavy water is D2O. Heavy water is also called deuterium oxide and is made up of oxygen and deuterium. Therefore, it is... View Article
Suppose the radius of the wire is r. Then the area of its cross-section is πr2. If R is the resistance, we are given. Explore more such... View Article