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names of acid redicals of group 1
How do impurities and temperature affect electrical resistivity of metals? Ans: Temperature effect on resistivity: Any increase in temperature of a conductor increase
Salt bridge is a U-shaped tube containing a semi-solid paste of some inert electrolyte like KCl, KNO 3 , NH 4 Cl, etc. in agar-agar and gelatin. An inert electrolyte is one which
what are differences and similarities between covalent bond and electrovalent bond
laboratory preparation
Q. Illustrate Strengths of Acids and Bases? Ans. Acids and bases can be classified as strong or weak . If an acid or base is strong, it ionizes completely in water. On
Solid Nacl is a bad conductor of electricity since: (1) In solid Nacl there are no ions (2) Nacl Solid is covalent (3) In solid Nacl there is no motion of ions
If the velocity of hydrogen molecule is 5x 10 4 cm sec -1 then its de-Broglie wavelength is: (1) 2 Å (2) 4 Å (3) 8 Å (4)100 Å Ans: 4 Å
The atomic number of an element is 17. The number of orbitals containing electron pairs in its valence shell is: (1) Eight (2) Six (3) Three
Q. Determine Mass to charge ratio of the electron? Ans. Eventually, Thomson was able to find the ratio of the electron's mass to its electrical charge (m/e). Regardless o
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