Multiple choice question
Multiple choice question Multiple choice question
f–block elements have been known as lanthanides and actinides. Give general characteristics of these elements along with their general electronic configuration? iz'u&29 laØe.k rRo fdUgsa dgrs gSa\ buds lkekU; xq.k n'kkZb;s\ vUr% laØe.k rRoksa dks le>kb;s\ What are transitional elements? Give their general characteristics? Explain inner transitional elements? iz'u&30 ok.MjokYl f=T;k ,oa lgla;kstd f=T;k fdUgsa dgk tkrk gS\ fp= dh lgk;rk ls Li"V dhft;s\ What are Vander walls and co-valent radius? Explain with the help of diagrams? iz'u&31 vfØ; xSl f=T;k ,oa vk;fud f=T;k fdUgsa dgk tkrk gS\ /kuk;u rFkk _.kk;u f=T;kvksa ds mnkgj.k ysdj Li"V dhft;s\ leku /ku vkos'k ,oa _.k vkos'k dh f=T;kvksa esa D;k laca/k gksuk pkfg;s\ Li"V djsaA What are inert gas radius and ionic radius? Explain giving examples of (+)ion and (–)ion? What should be the relation between (+)ve and (–)ve of the uniform charge? iz'u&32 vk;uu ÅtkZ vFkok vk;uu ,UFkSYih dks ifjHkkf"kr dhft;s\ Define ionization energy or ionization enthalpy? iz'u&33 bySDVªku cU/kqrk dks ifjHkkf"kr dhft;s\ bldh bdkbZ D;k gS\ Define electron affinity. What is its unit? iz'u&34 me; /kehZ vkWDlkbM~l dkSu ls gksrs gSa\ fdUgha nks mnkgj.kksa ds ek/;e ls Li"V djsaA What are emphoteric oxides? Explain with the help of any two suitable examples 18
iz'u&35 fdlh vkorZ esa rFkk lewg esa ijek.kq Øekad c
- Page 1 and 2: ikB~;Øe ikB~;Øe jlk;u jlk;u 'kkL=
- Page 3 and 4: 5 fLFkj vuqikr fu;e ds LFkkid Fks&
- Page 5 and 6: 17 6.023 x 1023 fdlh Hkh nzO; ds ,d
- Page 7 and 8: cgqfodYih; cgqfodYih; iz'uA iz'uA b
- Page 9 and 10: According to Aufbau principle elect
- Page 11 and 12: 18 Cr rRo dk bySDVªkfud foU;kl ---
- Page 13 and 14: iz'u&37 fdlh rRo dk ijek.kq Øekad
- Page 15 and 16: The increasing order of size will b
- Page 17: 22 Li ,oa Mg rFkk Be vkSj Al ds xq.
- Page 21 and 22: c
- Page 23 and 24: 19 vk/kqfud vkorZ lkfj.kh fuEu esa
- Page 25 and 26: iz'u&31 gkbMªkstu cU/k ds dkj.k ;k
- Page 27 and 28: 2 O rFkk H dk ?kuRo vuqikr 16:1 gS
- Page 29 and 30: Evaporation of water should come un
- Page 31 and 32: iz'u&27 ,oksxsMªks fu;e dks ifjHkk
- Page 33 and 34: iz'u&42 ije 'kwU;] ije rki ,oa NTP
- Page 35 and 36: 8 mRØe.kh; vfHkfØ;k ds fy;s lkE;
- Page 37 and 38: fjDr fjDr fjDr LFkkuksa LFkkuksa dh
- Page 39 and 40: In measuring �U and �H for calc
- Page 41 and 42: If �H f ° = 3400 cal/mol, then c
- Page 43 and 44: cgqfodYih; cgqfodYih; iz'uA iz'uA b
- Page 45 and 46: 12 Kc dh bdkbZ gS& (a) ¼eksy izfr
- Page 47 and 48: 22 mRØe.kh; jklk;fud vfHkfØ;kvksa
- Page 49 and 50: Differentiate among concept of acid
- Page 51 and 52: In oxidation state there is- (a) Ga
- Page 53 and 54: In the froth floating process parti
- Page 55 and 56: iz'u&7 fo|qr jklk;fud lSy dk ukekaf
- Page 57 and 58: iz'u&19 xkayd fdl dgrs gS\ bldk pqu
- Page 59 and 60: 5 H 2 O, H 2 S, H 2 Se rFkk H 2 Te
- Page 61 and 62: Explain the structure of H 2 O 2 wi
- Page 63 and 64: (b) Na 2 SO 4 dh ty;kstu ÅtkZ tkyd
- Page 65 and 66: Give labelled diagram for soda amon
- Page 67 and 68: iz'u&31 f}rh; lewg ds rRoks dks {kk
iz'u&35 fdlh vkorZ esa rFkk lewg esa ijek.kq Øekad c
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