Multiple choice question
Multiple choice question Multiple choice question
4 lksfM;e /kkrq esa ped dk dkj.k gS& (a) vafre d{k esa bySDVªkuksa dk nksyu (b) lksfM;e vk;uksa dk folj.k (c) eqDr bySDVªkuksa dk mRrstu (d) buesa ls dksbZ ugha Shining of Na Metal is due to– (a) Vibrations in outer most orbitals electrons (b) Diffusion of Na + (c) Activation of free electrons (d) None of these 5 fdl lYQsV dh foys;rk U;wure gksxh Which sulphate has least solubility– (a) MgSO 4 (b) BaSO 4 (c) SrSO 4 (d) CaSO 4 7 {kkjh; e`nk /kkrqvksa ds lYQsVksa dh ?kqyu'khyrk lewg esa uhps tkus ij ?kVus dk dkj.k gS& (a) fØLVy tkyd ÅtkZ esa o`f) gksuk (b) leUo; la[;k esa o`f) dk gksuk (c) xyukadksa esa o`f) dk gksuk (d) mijksDr lHkh dk gksuk The decrease in solubility of the sulphates of alkaline earth metals on going downwards in the group– (a) Increase in crystal lattice energy (b) Increase in coordination number (c) Increase in their melting point (d) All of these 8 lksfM;e dk nzo veksfu;k¡ esa foy;u& (a) uhyk jax nsrk gS (b) lksfM;e vekbM cukrk gS (c) H xSl nsrk gS 2 (d) buesa ls dksbZ ugha In liquid ammonia Na metal gives (a) Blue colour (b) Soda Amide (c) H 2 Gas released (d) None of these 9 Na SO ty esa foys; gS fdUrq BaSO vfoys; D;ksafd& 2 4 4 (a) Na SO dh tkyd ÅtkZ ty;kstu ÅtkZ ls de gS 2 4 62
(b) Na 2 SO 4 dh ty;kstu ÅtkZ tkyd ÅtkZ ls de gS (c) BaSO 4 dh tkyd ÅtkZ ty;kstu ÅtkZ ls vf/kd gS (d) foys;rk esa tkyd ÅtkZ dk dksbZ laca/k ugha gS Na 2 SO 4 is soluble in water but BaSO 4 is insoluble, because of the reason– (a) Lattice energy of Na 2 SO 4 is less than its hydration energy. (b) Hydration energy of Na 2 SO 4 is less than its lattice energy. (c) Lattice energy of BaSO 4 is more than Hydration energy. (d) There is no reaction between lattice energy and solubility. 10 vEy izcyrk dk lgh Øe gksuk pkfg;s& Strength of Acidity should be– (a) CaO < CuO < H 2 O < CO 2 (c) CaO < H 2 O < CuO < CO 2 11 ftIle dks mPprki ij xeZ djus ls izkIr gksxk& 63 (b) H O < CuO < CaO < CO 2 2 (d) H O < CO < CaO < CuO 2 2 On heating Zypsom to a high temperature will be produced– (a) CaSO 4 . ½H 2 O (b) CaSO 4 . 2H 2 O (c) CaO + SO 3 4 4 ,oa ,oa 5 5 vad vad okys okys iz'u iz'u (d) CaSO 4 iz'u&12 izFke ,oa f}rh; lewg ds rRoksa esa izFke lnL; ds vlkekU; xq.k n'kkZb;s\ Give anomalous properties of the first member in first and second groups. iz'u&13 fod.kZ laca/k D;k gS\ bl laca/k ds dkj.k xq.kksa esa lekurk dks Li"V dhft;s\ What is diagonal relationship? Give reason for this similarity in these properties? iz'u&14 {kkj /kkrqvksa ds xq.kks esa vkofrZrk dks fuEu xq.kks ds vk/kkj ij n'kkZb;s& (a) ?kuRo (b) DoFkukad ,oa xyukad (c) vk;uu ÅtkZ (d) ijekf.od ,oa vk;fud f=T;k,sa (e) vk;uksa dk jax rFkk pqEcdh; xq.k
- 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
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- 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
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- 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
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- 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: Explain the structure of H 2 O 2 wi
- Page 65 and 66: Give labelled diagram for soda amon
- Page 67 and 68: iz'u&31 f}rh; lewg ds rRoks dks {kk
- Page 69 and 70: fjDr fjDr LFkkuks LFkkuks dh dh iwf
- Page 71 and 72: In any group atomic mass increase g
- Page 73 and 74: Describe electrolytic method for ge
- Page 75 and 76: In elements of group-14, on coming
- Page 77 and 78: 4 4 4 ,oa ,oa ,oa 5 5 5 vad vad oky
- Page 79 and 80: 2 ftu nzo inkFkksZ ds DoFkukad fHkU
- Page 81 and 82: 8 isij ØksesVksxzkQh }kjk jaxks dk
- Page 83 and 84: 16 dsfj;l uyh esa CH 2 ClCOOH dks l
- Page 85 and 86: 4 4 4 ,oa ,oa ,oa 5 5 5 vad vad oky
- Page 87 and 88: iz'u&43 fuEu dks izsj.k izHkko ds v
- Page 89 and 90: 4 C H O ds }kjk fdru izdkj ds vYdks
- Page 91 and 92: iz'u&14 esØksekWyhD;wy D;k gksrs g
- Page 93 and 94: (c) vkblksizhu ls ikWyhvkblksizhu (
- Page 95 and 96: Pollutants are said- (a) CO 2 , SO
- Page 97 and 98: 5 cgqydksa ds izdkjksa esa ls dkSu&
- Page 99: 18 FkSfyd ,flM dk jklk;fud lw= ----
(b) Na 2 SO 4 dh ty;kstu ÅtkZ tkyd ÅtkZ ls de gS<br />
(c) BaSO 4 dh tkyd ÅtkZ ty;kstu ÅtkZ ls vf/kd gS<br />
(d) foys;rk esa tkyd ÅtkZ dk dksbZ laca/k ugha gS<br />
Na 2 SO 4 is soluble in water but BaSO 4 is insoluble, because of the reason–<br />
(a) Lattice energy of Na 2 SO 4 is less than its hydration energy.<br />
(b) Hydration energy of Na 2 SO 4 is less than its lattice energy.<br />
(c) Lattice energy of BaSO 4 is more than Hydration energy.<br />
(d) There is no reaction between lattice energy and solubility.<br />
10 vEy izcyrk dk lgh Øe gksuk pkfg;s&<br />
Strength of Acidity should be–<br />
(a) CaO < CuO < H 2 O < CO 2<br />
(c) CaO < H 2 O < CuO < CO 2<br />
11 ftIle dks mPprki ij xeZ djus ls izkIr gksxk&<br />
63<br />
(b) H O < CuO < CaO < CO 2 2<br />
(d) H O < CO < CaO < CuO<br />
2 2<br />
On heating Zypsom to a high temperature will be produced–<br />
(a) CaSO 4 . ½H 2 O (b) CaSO 4 . 2H 2 O<br />
(c) CaO + SO 3<br />
4 4 ,oa ,oa 5 5 vad vad okys okys iz'u<br />
iz'u<br />
(d) CaSO 4<br />
iz'u&12 izFke ,oa f}rh; lewg ds rRoksa esa izFke lnL; ds vlkekU; xq.k n'kkZb;s\<br />
Give anomalous properties of the first member in first and second groups.<br />
iz'u&13 fod.kZ laca/k D;k gS\ bl laca/k ds dkj.k xq.kksa esa lekurk dks Li"V dhft;s\<br />
What is diagonal relationship? Give reason for this similarity in these<br />
properties?<br />
iz'u&14 {kkj /kkrqvksa ds xq.kks esa vkofrZrk dks fuEu xq.kks ds vk/kkj ij n'kkZb;s&<br />
(a) ?kuRo (b) DoFkukad ,oa xyukad (c) vk;uu ÅtkZ<br />
(d) ijekf.od ,oa vk;fud f=T;k,sa (e) vk;uksa dk jax rFkk pqEcdh; xq.k
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