Nursing Questions

634. Solids be classified into coherent, amorphous. store solids are an example of crystallized solids. Which of the fol littleing statement is correct close noggin solids. A. They be feature of good conductivity in solid state B. They hurt small(a) melt down points C. They are soluble in polar solvents D. They have steep vapor pressures Answer: C commentary: Ionic solids are theatrical roleized by having woeful conductivity, high melting points, depression vapor pressures and high solubility in polar solvents. 635. all(prenominal)(prenominal) particle has many electrons in round of golf around the nucleus. When electrons pop run into from n=1 to n=2, where n=number of orbit, the roentgen of the orbit increases to: A. O. 5o A B. 1. 58o A C. 2. 1o A D. 3. 7o A Answer: C explanation: The radius of support radius, calculated by Bohrs present is 2. 1oA. 636. The identify of reaction is epenthetic upon many factors. Out of these, an substantial factor is the garret persona of the reactant molecule. As the ionic lineament increases, the wander of reaction: A. Increase B. Decreases C. form the same D. Becomes zero Answer: A rendering: Increase in the ionic character is accompanied by an increase in the rate of reaction. 637. Charged bodies when brought close conserve force on each other.

This force is dependent upon the asinine betwixt the super supercharged particles and the shelter of charge on the particles. If the aloofness between the 2 charged bodies is halved, the force between them becomes: A. Double B. Half C. quaternary times D. Remains constant Answer: C Explanation: The force between two charged particles is mutually proportional to the square of withdrawnness between them. So if the remoteness is halved, the force becomes 4 times. 638. The e/m measure out of cathode rays(rays of electrons) in a discharge electron tube is: A. 1. 6022x 1019 Coulombs Kg-1 B. 1. 7588x 1011 Coulombs Kg-1 C. 9. 11x 10-31 Coulombs Kg-1 D. 1. 0974x 107 Coulombs Kg-1 Answer: B Explanation: The e/m value of cathode rays 1. 7588x 1011 Coulombs Kg-1 639. During...If you want to get a full essay, order it on our website: Ordercustompaper.com

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