Danveer Singh

Explain why BF3 has zero dipole moment although it has three polar BF bonds.

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Explain why BF3 has zero dipole moment although it has three polar B-F bonds. Boron trifluoride is has zero dipole moment although it has three polar B—F bonds. This is because BF3 has sp2 hybridization and regular trigonal planal geometry. And hence the individual dipole moments of polar bonds get cancelled and overall dipole moment … Read more

A simple pendulum is made of bob which is a hollow sphere full of sand suspended by means of a wire. If all the sand is drained out, the period of the pendulum will

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A simple pendulum is made of bob which is a hollow sphere full of sand suspended by means of a wire. If all the sand is drained out, the period of the pendulum will increase decrease remian same become erratic Answer :C Solution :ll in the equation T=2pi sqrt l/g is measured from centre of mass and … Read more

What is a suspension? Write its properties.

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What is a suspension? Write its properties. Answer: Suspension: A suspension is a heterogeneous mixture in which solids are dispersed in liquids. The solute particles in suspension do not dissolve but remain suspended throughout the medium. For example Paints, Muddy water chalk water mixtures etc.Properties of a Suspension• Suspension is a heterogeneous Mixture.• The particles of a … Read more