Page 2 - chemistry exclusive short suggestion

P. 2

imvqb G·K¬zwmf mv‡Rkb
 cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW +* cøvRwgW +*
 cøvRwgW + * cøvRwgW +* cøvRwgW * cøvRwgW + cøvRwgW + cøvRwgW  cøvRwgW + cøvRwgW +cøvRwgW + cøvRwgW +  cøvRwgW  cøvRwgW + cøvRwgW  +  cøvRwgW +* cøvRwgW + cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW + cøvRwgW + cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW + * cøvRwgW +*
 weRviK c`v_©- NaH, LiAlH 4, Na. Zi½ •`N©¨
 A¤ø-¶vi wb‡`©kKwjUgvm eøy, wjUgvm †iW, (1) Mvgv iwk¥  0.0005-0.01nm
wg_vBj A‡iÄ, †dbd_¨vwjb| (2) iÄb iwk¥0.01-10nm
 welv³ c`v_©M¨vm, Zij, KwVb d¨vWwmqvg, Cr(VI) (3) AwZ‡e¸wb iwk10-380nm
jeY| (4) `„k¨gvb AÂj380-780nm
 ¶wZKviK c`v_-Paints, Floor Polishes. (5) Ae‡jvwnZ AÂj780(nm)-1000 m .
©
 D‡ËRK c`v_weiÄK c`v_©, †mvc cvDWvi, wm‡g›U ¸uov (6) gvB‡µvI‡qf AÂj1000 m -100cm
©
jNy GwmW I ¶vi `ªeY|
 `vn¨ Zn cvDWvi, A¨v‡ivmj, †c‡Uªvwjqvg, LiAlH 4. (7) ‡iwWI I‡qf1m-100000km
 gnvRvMwZK iwk¥i Zi½ •`N©¨<0.00005nm.
©
 gvivZ¥K `vn¨ c`v_-WvB B_vBj B_vi, LPG, A¨vwmwUwjb,
A¨v‡ivmj|  `„k¨gvb Av‡jvi 7wU e‡Y©i Zi½ •`N©¨-
 we‡ùviK‣Re cvi-A·vBW, NH 4NO 3. ‡e¸wb  380-424nm
bxj  424-450nm
 cwi‡ek `~lKNH 3Cl 2 Uviwcb †Zj, KxUbvkK|
Avmgvbx  450-500nm
©
 RviK c`v_Cl 2 M¨vm|
meyR  500-575nm
 ¶qKviK ivmvqwbK c`v_©weøwPs mjy¨kb, Mvp GwmW, ¶vi,
†WªBb njy`  575-590nm
Kgjv  590-647nm
jvj 547-780nm

Aa¨vq-2 : ¸YMZ imvqb Near IR  . 0 78 m 5 . 2

2
 Ae‡jvwnZ (IR) AÂj Middle IR  . 5 m  25 
msL¨vMZ Z_¨ Far IR  25 m 1000 m
y
 iv`vi‡dvW© cix¶vq e¨eüZ †mvbvi cv‡Îi ciæZ¡ 0.0004cm
-10
-19
©
 ‡mvbvi cvZ †f` K‡i Avjdv KYvi 99% |  †cÖvU‡bi PvR+1.610 C/4.810 esu.
-24
 Avjdv KYv wecixZ w`‡K wd‡j Av‡m20000 G 1wU|  cøvRwgW + * cøvRwgW +* cøvRwgW + * cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW +cøvRwgW + cøvRwgW +  cøvRwgW  cøvRwgW + cøvRwgW +  cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW + cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +* cøvRwgW +  wbDUª‡bi fi1.67510 g = 1.008665am .  cøvRwgW + * cøvRwgW +* cøvRwgW + * cøvRwgW + cøvRwgW +
y
 cigvbi †K‡›`ª _v‡K cigvbyi mgMÖ f‡ii99.97% |  wbDUª‡bi PvR©  0
  KYvi fi B‡jKUªb KYvi f‡ii ‡P‡q  7000 ¸Y †ewk|  wbDUª‡bi fi B‡jKUª‡bi f‡ii1839 ¸Y|
  -KYvi PvR© 2 Ges fi 4 e 8
7
-1
-1
7
  KYvi MwZ  1x10 ms -2.5 x10 ms  m Gi gvb 1.7610 C/g
-8
 H-cigvbyi e¨vm 1x10 cm/0.1nm.  H- Gi 1wU cigvbyi cÖK…Z fi  0.167310 g.
-23
-12
-13
 wbDwK¬qv‡mi e¨vm1x10 cm10 cm ev,  C- Gi 1wU cigvbyi cÖK…Z fi  1.992410 g.
-23
-15
-14
1x10 m10 m  O- Gi 1wU cigvbyi cÖK…Z fi 2.656010 g.
-23
 GKwU cigvby Zvi wbDwK¬qvm †_‡K10 nvRvi-1 j¶ ¸Y eo|  1dalton = 1.6605 10 g  1amu
-24
-34
 cøv‡¼i aªæeK, h6.62610 Js.  O- Gi Av‡cw¶K cvigvbweK fi15.996
-8
-11
-27
©
 ‡evi e¨vmva 5.29210 m = 0.52910 cm.  cvigvbweK fi GKK1.660510 kg.
-1
-2
-1
 R H = 1.0967810 nm =109678cm .  Uvs‡÷b wdjv‡g›U incandescent ev‡j¦ we`y¨r kw³
 AiweUv‡ji kw³gvÎv90-95% Av‡jv‡Z cwiYZ nq5%
 cigvbyi g~j KwYKvi msL¨v200  Fluorescent light ev‡j¦ we`y¨r kw³ Av‡jv m„wó K‡i-
 cÖvK…wZK I K…wÎg †g․‡ji msL¨v114. 20%
8
10
 AvB‡mvU‡ci msL¨v1300  k~‡b¨ Av‡jvi †eM 2.997910 m/310 cm.
 B‡jKUª‡bi fi 1085.9  10  28 / g 10  31 kg.  gvB‡µvI‡qf-Gi wd«Kz‡qwÝ300GHz-300MHz
 ‡iwWI I‡qf-Gi wd«Kz‡qwÝ300MHz-3kHz.
1
 B‡jKUª‡bi fi †cÖvU‡bi f‡ii cÖvq- ¸Y|  cvigvYwbK eY©vjx2 cÖKvi|
1837  Na- cigvYyi eY©vjx‡Z 2wU †iLv †`Lv hvq, hvq
 B‡jKUª‡bi PvR 6.1  10  19 C  = 589.6nm, 590nm
©
 ‡cÖvU‡bi fi 007276.1 amu .  H- cigvYyi 4wU †iLv eY©vjx †`Lv hvq, hvi
= 410.1nm, 431.1nm, 486.1nm, 656.3nm.
 cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW + cøvRwgW +*

cøvRwgW -6

1 2 3 4 5 6 7