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When beryllium is bombarded with α -particles, extremely penetrating radiations which cannot be deflected by electrical or magnetic field are given out. These are:
(1) A beam of protons
(2) α -rays
(3) A beam of neutrons
(4) X-rays
Ans: A beam of neutrons
Octet rule is not valid for the molecule: (1) Co 2 (2) H 2 O (3) CO
what is the name for the following compound,CH3-C=C-CH-CH=CH2
Highest covalent character is found in: (a1 CaF 2 (2) CaCl 2 (3) CaBr 2 (4)
Copper=54.1%, oxygen=20.1% and the balance sulfur. Could this also be the molecular formula? What other data is needed?
explain diversity and magnitude of organic compounds?
Why does calcium sulphate form scales in high pressure boilers
Write essey on organic quantitative analysis
how does salt bridge works??
verify the law of multiple proportions for an element X, which forms oxides having percentages of X equal to 77.4%, 63.2%,69.6% and 72.0%
what is the relation between gram atomic mass and avogadro''s no ?
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