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Q.46 Silver chloride dissolves in ammonium
hydroxide forming P. What is not true about P ?
(a) P is called Tollen's reagent
(b) P is a double salt
(c) P is paramagnetic in nature
(d) P is cationic complex
(1) a, b (2) b, c
(3) c, d (4) a, c, d
Q.47 Select the correct statement(s) :
(a) In K2Cr2O7, every chromium atom is linked
with four oxygen atoms
(b) Blue colour of copper sulphate solution
becomes fade in excess of ammonia
(c) A mixture of alkaline CuSO4 and sodium
potassium tartarate is Fehling's solution
(d) Mixture of CuSO4 + Ca(OH)2 is called
Bordeaux mixture
(1) Only a (2) a, b, c
(3) a, c, d (4) a, b, c, d
Q.48 Which of the following statement(s) is (are)
correct regarding Lewis acids ?
(a) Molecules having a central atom with an
incomplete octet in it can act as Lewis acids
(b) Molecules in which atoms of dissimilar
electronegativity are joined by multiple
bonds can acts as Lewis acids
(c) SiF4, PF5 and FeCl3 are Lewis acids
(d) Neutral species having at least one lone pair
of electrons can act as Lewis acids
(1) a, b (2) b, c
(3) a, b, c (4) a, c, d
Q.49 A 1.5 ampere current is passed for sometime
through a solution of AgNO3 to deposit 0.54 g of
Ag. Select the correct statements :
(a) The time for which current is passed is
321.67 minute
(b) The charge passed is 482.5 F
(c) The charge passed is 482.5 C
(d) The time for which current passed is 321.67
sec.
(1) a, b (2) b, c
(3) c, d (4) a, b, c, d
Q.46 flYoj DyksjkbM] veksfu;e gkbMªkWDlkbM esa ?kqydj
P cukrk gSA fuEu esa ls dkSuls P ds ckjs esa lR; ugha
gS ?
(a) P, dks VkWysu vfHkdeZd dgrs gSa
(b) P, f}d yo.k gS
(c) P, izd`fr esa vuqpqEcdh; gS
(d) P, /kuk;fud ladqy gS
(1) a, b (2) b, c
(3) c, d (4) a, c, d
Q.47 lgh dFku pqfu;s :
(a) K2Cr2O7 esa] izR;sd Øksfe;e ijek.kq pkj
vkWDlhtu ijek.kq ls tqM+k gksrk gS
(b) uhys jax dk dkWij lYQsV foy;u] veksfu;k ds
vkf/kD; esa gYdk gks tkrk gS
(c) {kkjh; CuSO4 o lksfM;e ikSVsf'k;e VkVZjsV dk
feJ.k] Qsgfyax foy;u gksrk gS
(d) CuSO4 + Ca(OH)2 dk feJ.k] ckWjMsDl feJ.k
dgykrk gS
(1) dsoy a (2) a, b, c
(3) a, c, d (4) a, b, c, d
Q.48 fuEu esa ls dkSuls dFku yqbZl vEy ds lUnHkZ esa
lR; gS ?
(a) viw.kZ v"Vd ds lkFk dsUnzh; ijek.kq ;qä v.kq esa
;g yqbZl vEy dh rjg dk;Z dj ldrk gS
(b) v.kq] ftlesa fHkUu fo|qr_.krk ds ijek.kq cgqcU/k
ls tqM+s gksrs gSaA yqbZl vEy dh rjg dk;Z dj
ldrk gS
(c) SiF4, PF5 o FeCl3 yqbZl vEy gS
(d) de ls de ,d ,dkdh ;qXe bysDVªkWu ;qä
Lih'kht] yqbZl vEy dh rjg dk;Z djrh gS
(1) a, b (2) b, c
(3) a, b, c (4) a, c, d
Q.49 1.5 ,Eih;j /kkjk dks dqN le; ds fy, AgNO3 ds
foy;u ls izokfgr fd;k tkrk gS] rks 0.54g Ag
laxzfgr gksrh gSA lgh dFku gS :
(a) /kkjk izokfgr djus dk le; 321.67 feuV gS
(b) izokfgr vkos'k 482.5 F gS
(c) izokfgr vkos'k 482.5 C gS
(d) izokfgr /kkjk dk le; 321.67 sec gS
(1) a, b (2) b, c
(3) c, d (4) a, b, c, d
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