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Question Bank based on Units
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rRoksa dk oxhZdj.k ,oa xq.kksa esa vkofrZrk
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jklk;fud vkca/ku ,oa vk.kfod lajpuk
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inkFkZ dh voLFkk,¡ & xSlh; ,oa nzoh;
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m"ekxfrdh ,oa jklk;fud ÅtZdh
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jklk;fud lkE; & A- lkE;koLFkk izØe vkSj izkoLFkk lkE;
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s-CykWd rRo ¼lewg 1 o 2 ds rRo½
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p-CykWd rRo & ¼A&lewg 13 ds rRo½
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p-CykWd rRo & ¼AA&lewg 14 ds rRo½
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(Atomic Structure and Chemical Bonding)
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Multiple choice question
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jlk;uKks ds varjkZ"Vªh; la?k }kjk dkcZu ds fdl vkblksVksi dks ijek.kq
nzO;ekuksa dh rqyuk ds fy;s pquk&
The carbon Isotope which was selected for comparing atomic masses by the
international union of chemists was–
(a) C14
(b) C50
(c) C12
(d) C70
2
1 eksy dgykrk gS&
(a) ,d xzke v.kq
(b) 6.023 x 1023 d.k
(c) 6.023 x 10–23 v.kq
(d) buesa ls dksbZ ugha
One mole is said to be–
(a) One gram mol
(b) 6.023 x 1023 Particles
(c) 6.023 x 10–23 molecule
(d) None of these
3
eksyj nzO;eku ugh dgykrk gS&
(a) 1 xzke v.kq dk nzO;eku
(b) ,d eksy dk nzO;eku
(c) 6.023 x 1023 v.kqvksa dk nzO;eku
(d) 6.023 x 10–23 ijek.kq dk nzO;eku
Molar mass is not–
(a) 1 gram atomicular mass
(b) Mass of one mole
(c) 6.023 x 1023 molecular mass
(d) 6.023 x 10–23 Atom’s mass
4
vkWDlhtu dh $2 vkWDlhdj.k voLFkk fuEu esa ls fdl ;kSfxd esa gS&
(a) H2O2
(b) H2O
(c) CO2
(d) OF2
In which compound the oxidation state of oxygen is +2
(a) H2O2
(b) H2O
(c) CO2
(d) OF2
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