Sintered crucible is made up of________________?
Sintered crucible is made up of________________?
A. Plastic
B. glass
C. porcetain
D. fiber
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The ionization energy__________________?
The ionization energy__________________?A. Generally increases from left to right in a period
B. Does not change in a period
C. Increase from top to bottom in a group
D. Does not change in a groupQualitative analysis is carried out for _________________?
Qualitative analysis is carried out for _________________?A. identification of elements
B. estimation of amounts of elements
C. molar ration of elements
D. molar volume of elementsThe boiling point increases down the zero group element due to_________________?
The boiling point increases down the zero group element due to_________________?A. Ion dipole forces
B. London forces
C. Hydrogen bonding
D. Dipole dipole forcesWhat is chemical symbol for Tungsten?
What is chemical symbol for Tungsten?A. Z
B. T
C. Tn
D. WTungsten, or wolfram, is a chemical element with the symbol W and atomic number 74. The name tungsten comes from the former Swedish name for the tungstate mineral scheelite, tung sten or “heavy stone”.
Angle of deflection was studied by________________?
Angle of deflection was studied by________________?A. Hitorff
B. Stoney
C. William Crookes
D. J.PerrinPresence of nitrogen in organic compounds is tested as__________?
Presence of nitrogen in organic compounds is tested as__________?A. Nitrogen gas
B. NH3
C. CN‾
D. NO