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Q. Briefly explain about Alloys?
Ans.
Pure metals are malleable. Metals that are harder, stronger and less malleable are sometimes required. These characteristics may be achieved by alloying.
Alloys are made by mixing two or more metals in the molten state and then allowing the mixture to solidify. Some alloys are solid solutions, which means that they are homogeneous mixtures of different metals.
The Ca 2+ and Mg 2+ ions in hard water form scum with soap. Therefore they don''t form lather and therefore don''t clean the dirt.
a) Write the following about protein synthesis: (i) Name the location where protein synthesis occurs. (ii) How do 64 codons code for only 20 amino acids? (iii) Which of t
Number of electron does species have The H2 2- ion can be conceived to result from the combination of two hydride ions (H-). This species have four electrons; two occupy the b
Calculate the activity of nuclides: Problem: 100 mg piece of a gold ornament containing 10% copper as impurity was irradiated with thermal neutrons at 2.1×10 11 n/cm 2
Physical Properties of benzene (a) First property of Benzene is that it is a colourless, mobile and volatile liquid. Its boiling point is 80°C and freezing point is 5.5°C. It c
How sodium carbonate can increase surface area of a catalyst
Hydrogen Peroxide Hydrogen peroxide is the other important hydride of oxygen. The oldest method of its preparation is by the action of dilute sulphuric acid on barium peroxide
o-isomer is more volatile and how separated by steam distillation?
hardness of borewell water is less than that of seawater
Q. General Characteristics of elements of Group 13? All the elements of Group 13 have similar valence shell electronic configuration of ns 2 np 1 , but the underlying core vari
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