MCQ on Hydrogen Bond, pH Scale

MCQ on Water (Part-2)

(1). Bond length between H and O atoms in water is: a.       0.00965 nm b.      0.0965 nm c.       0.965 nm d.      9.650 nm (2). The van der Waals radius of Oxygen atom in water molecule is a.       1.2 Å b.      1.4 Å c.       1.6 Å d.      1.8 Å Learn more: MCQ on pH  | MCQ on Buffer Action (3). At […]

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mcq on water chemical & physical properties

MCQ on Water, pH and Buffer Systems (Part-1)

MCQ on Water (1). Water is liquid at room temperature, the most important reason for this is the: a.  High boiling point of water b.  High melting point of water c.  High heat of vaporization of water d.  Cohesive forces due to hydrogen bonds in water Learn more: MCQ on pH  | MCQ on Buffer Action (2). Water is a […]

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ecological interactions

Biological Interactions: Positive and Negative Interactions in an Ecosystem (.PPT)

Interactions in an Ecosystem Interactions in an Ecosystem: Organisms living together in a community influence each other directly or indirectly under natural conditions. All the vital process of living such as growth, nutrition and reproduction requires such interactions between individuals in the same species (intraspecific) or between species (interspecific) These inter or intra relationships of individuals in a population or […]

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