Page 36 - QNA ALIF

QNA SSC Suggestion

6. ‡Kv‡l Ab¨vbvqb I K¨vUvq‡bi MwZi w`K wecixZ nevi 9. K¨vjvgvBb n‡Z Zn wb®‹vkY|
KviY| 10 99.99% weï× Cu Drcv`b cÖwµqv|
7. ‡jvnvi Dci Cr cÖ‡jc †`qvi cÖwµqv| Board G Place cvevi Rb¨
8. Zwor cÖ‡jc I M¨vjfvwbK †Kv‡li Zzjbv| 1. RxevYybvkK wn‡m‡e weøwPs cvDWv‡ii wµqv‡KŠkj|
Board G Place cvevi Rb¨ 2. Kcv‡ii Zwor we‡kvab|
3+
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1. NH3 Øviv Al wbYq|
2. Kcvi Zwor we‡kvab|
Chapter- 11: েগনে সম্পি: েীবাশ্ম

Chapter- 9: এগসর্-িারক সমতা
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1. wewfbœ ˆRe †hŠ‡Mi c~Y `n‡b Drcvw`Z ev‡®úi cwigvY|
2. ‰Re‡hŠ‡Mi kZKiv mshyw³|
1. Rjxq `ªe‡Yi cÖK…wZ wbY©q| 3. A¨vj‡K‡bi c~Y© I Ac~Y© `n‡bi ¯^v¯’¨ I cwi‡e‡ki Dci

2. cwi‡e‡ki Dci SO2, NO2 I CO2- i cÖfve| cÖfve|
3. Gwm‡Wi pH mxgv wbY©q| A+ cvevi Rb¨
4. CO2, SO2 I SO3- Gi Rb¨ GwmW e„wó I Mªxb nvDR 1. cÖvK…wZK M¨vm n‡Z A¨vj‡K‡i iƒcvšÍi|
cÖfve| 2. A¨vj‡Kvnj n‡Z GwmW cÖ¯‘wZ|
A+ cvevi Rb¨ 3. Bw_b n‡Z wf‡bMvi ˆZwi cÖwµqv|

1. G›Uvwm‡Wi Kvh©cÖwµqv| 4. A¨vj‡Kb n‡Z A¨vjwWnvBW cÖ¯‘wZ|
2. LiZv nevi KviY| 5. A¨vjwWnvBW e¨envi I ÿwZKi w`K|
Board G Place cvevi Rb¨ 6. Bw_b n‡Z MøvBKj Drcv`b cÖwµqv|
7. wg‡_b n‡Z †K¬v‡ivdig cÖ¯‘wZ|
1. FeCl2 kbv³KiY cÖwµqv|
8. A¨vj‡Kvnj n‡Z A¨vj‡Kb ˆZwii Dcvq|
2. FeCl3 kbv³KiY cÖwµqv|
9. A¨vjwKb n‡Z ‰Re GwmW cÖ¯‘wZ|
2+
s+
3. Zn I Al - G AwZwi³ NaOH Pvjbv Ki‡j Kx
Board G Place cvevi Rb¨
nq|
1. †cÖvwcb n‡Z _v‡g©vcøvw÷K/_v‡g©v‡mwUs cøvw÷K cÖ¯‘wZi

m¤¢ve¨Zv|

2. Am¤ú„³Zv/m¤ú„³Zv cÖgv‡Yi Dcvq|
Chapter- 10: েগনে সম্পি: ধ্াত ু -অধ্াত ু
Chapter- 12: আমাবির েীববন রসােন

1. Fe3O4 G Fe- Gi RviY msL¨v|
1. weøwPs cvDWv‡ii e¨envi|
A+ cvevi Rb¨
2. mvevb Øviv MÖxR ev gqjv cÖ¯‘Z cÖwµqv|
1. Al2O3 NbxKiY cÖwµqv| 3. wf‡bMv‡ii e¨envi|
2. Al2O3 n‡Z All wb®‹vkb A+ cvevi Rb¨
3. Fe2O3 n‡Z Fe wb®‹vkb cÖwµqv 1. Pzb †_‡K weøwPs cvDWvi ˆZwi cÖwµqv|
4. H2SO4- Gi RviK ˆewkó¨| 2. A¨v‡gvwbqvg jeY n‡Z A¨v‡gvwbqv ˆZwii Dcvq|

5. H2SO4. Gi wbiæ`K ˆewkó¨| 3. wWUvi‡R›U cÖ¯‘Z cÖYvjx|
6. Fe2O3.3H2O NbxKiY cÖwµqv| 4. Dw™¢` KZ…©K BDwiqv †kvlY †KŠkj|
7. Na wb®‹vkb cÖwµqv| 5. A¨v‡gvwbq n‡Z †mvWv A¨vk cÖ¯‘Z cÖYvjx|
8. wR¼ †eøW n‡Z Kvw•ÿZ avZz wb®‹vkb| 6. gvwU‡Z A¨v‡gvwbqvg mvj‡d‡Ui f‚wgKv|
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