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welq †KvW 1 2 7 weGGd kvnxb K‡jR XvKv

Abykxjb cÖ¯‘wZ g~j¨vqb cixÿv-1 t 2020 8g †kªwY

welq: weÁvb (m„Rbkxj)

mgq: 2 N›Uv 30 wgwbU c~Y©gvb-70

1| GKwU e¯‘i fi †g‡c 60 †KwR cvIqv †Mj | e¯‘wU‡K gy³fv‡e wb‡Pi w`‡K †Q‡o w`‡j 9.8 m/s †e‡M co‡Z _v‡K|

K. AwfKl©R Z¡iY Kv‡K e‡j? 1

L. wjd‡U KLb †Kv‡bv e¨w³ wb‡R‡K nvjKv Abyfe K‡ib †Kb? e¨vL¨v Ki| 2

M. Puv‡` e¯‘wUi IRb KZ n‡e wbY©q Ki| 3

N. Ôf~-c„‡ôi wewfbœ AÂ‡j DÏxc‡K DwjøwLZ e¯‘i IR‡bi gvb GK bqÕ-MvwYwZK we‡køl‡Y †Zvgvi gZvgZ e¨³ Ki| 4 2|

µwgK †gŠ‡ji cÖZxK

(i) Li

(ii) Cl

(iii) Mg

K. Avqb Kv‡K e‡j? 1

L. cÖZxK I ms‡K‡Zi g‡a¨ `ywU cv_©K¨ wjL| 2

M. (ii) I (iii) bs †gŠ‡ji B‡jKUªb web¨vm wPÎmn e¨vL¨v Ki| 3

N. Avqb •Zwii gva¨‡g (i) bs I (ii) bs †gŠ‡ji g‡a¨ †hŠM MVb cÖwµqv we‡kølY Ki| 4 3|

(X) (Y) (Z)

K. wefe cv_©K¨ Kv‡K e‡j? 1

L. AC I BC cÖev‡ni g‡a¨ `ywU cv_©K¨ wjL| 2

M. M„‡n we`y¨Zvq‡b (Y) †K wKfv‡e eZ©bx‡Z hy³ Ki‡Z nq? wPÎmn †mB ms‡hvM eZ©bxwUi myweav eY©bv Ki| 3

N. eZ©bx‡Z (X) I (Z) hš¿`ywUi ms‡hvM cÖwµqvi Zzjbvg~jK Av‡jvPbv Ki| 4

4| (i) Al₂O₃HClAlCl₃H₂O (ii) NaHClNaClH₂

K. ‡hvRbx Kv‡K e‡j? 1

L. jvBg IqvUvi ej‡Z Kx eySvq? e¨vL¨v Ki| 2

M. (i)bs wewµqvwU mgZv K‡i †`LvI †h cigvYyi m„wó ev webvk †bB A_¨v©r wewµqK I wewµqvRvZ c`v‡_©i cigvYy msL¨A GKB| 3

N. (ii) bs wewµqvwU Kx ai‡bi? hyw³mn we‡kølY `vI| 4

5| (A) †gŠ‡ji cvigvYweK msL¨v 12 I fi msL¨v 24| B †gŠ‡ji B‡jKUªb msL¨v 9|

K. ‡ZRw®Œq AvB‡mv‡Uvc Kv‡K e‡j? 1

L. wbqb wbw¯Œq M¨vm †Kb? e¨vL¨v Ki| 2

M. A †gŠjwUi AvqwbZ Ae¯’v A²^ 12

24 n‡j B‡jKUªb, †cÖvUb I wbDUªb msL¨v wbY©q Ki| 3

N. DÏxc‡Ki A †gŠjwU B †gŠ‡ji mv‡_ eÜb •Zwi Kivi mÿgZv mgxKiYmn we‡kølY Ki| 4 6| `ywUi e¯‘i fi h_vµ‡g 500 MÖvg Ges 2 †KwR| e¯‘Ø‡qi ga¨eZ©x `~jZ¡ 50 †m.wg.|

K. fi Kv‡K e‡j? 1

L. AwfKl© ej‡Z GK ai‡bi gnvKl© ej-e¨vL¨v Ki| 2

M. DÏxc‡Ki 1g e¯‘wUi IRb ‡giæAÂ‡j KZ n‡e wbY©q Ki| 3

N. DÏxc‡Ki e¯‘Ø‡qi ga¨Kvi AvKl©Y ej Pvi¸Y †c‡Z n‡j `~i‡Z¡i Kxiƒc cwieZ©b Avb‡Z n‡e? MvwYwZK we‡køl‡Yi gva¨‡g

†`LvI| 4

7| winvg 8g †kÖwYi wkÿv_©x| †m Zvi ¯‹zj †_‡K Av‡qvwRZ wkÿvmd‡i MvRxcyi mvdvix cv‡K© †Mj| †mLv‡b †m is-‡eis‡qi cÖRvcwZ

†`Lj cÖRvcwZ M¨vjvwi‡Z| GQvov †m, CMj I Kzwgi †`Lj|

K. wm‡jvg Kx? 1

L. fvwUeªvUv DbœZ cÖvYx †Kb? e¨vL¨v Ki| 2

M. DÏxc‡Ki Do‡Z cv‡i Ggb cÖvwY `ywUi Zzjbv Ki| 3

N. DÏxc‡Ki †k‡lv³ cÖvwYwU DfP‡ii mv‡_ ce©MZfv‡e GK n‡jI †kÖwYMZfv‡e GK bq-we‡kølY Ki| 4 8| wb‡Pi K¨vwiIKvB‡bvwmm Gi avc †`Iqv n‡jv-

A-AcZ¨ wbDwK¬qvm m„wó B- AcZ¨ †µvg‡Rvg m„wó

A¨vwgUvi ‡iva †fvëwgUvi

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Page 2 of 2 C-Zš‘gq hš¿

K. ‡m‡›Uªvwgqvi Kx? 1

L. Rx‡bi ivmvqwbK iƒc ej‡Z Kx eyS? 2

M. C Gi MVb e¨vL¨v Ki| 3

N. AcZ¨ †Kv‡li †µvg‡Rvg msL¨vi mgZvq B av‡ci f~wgKv we‡kølY Ki| 4

9| wb‡Pi wPÎwU jÿ¨ Kit

K. cÖvwYi A‡š¿ †Kvb cÖwµqvq Lv`¨ †kvwlZ nq? 1

L. Awf¯ªeY we‡kl GK cÖKvi e¨vcb-e¨vL¨v Ki| 2

K. ‡µvgvwUW Kx? 1

L. n¨vcø‡qW I wWcøv‡qW Ae¯’v ej‡Z Kx eyS? 2

M. (ii) bs cÖwµqvwU e¨vL¨v Ki| 3

N. Zzwg wkï †_‡K 13 eQ‡i wK‡kvi n‡q‡Q-G‡Z DÏxc‡Ki †Kvb wefvRb `vqx-we‡kølY Ki| 4 11| A nvIi gvQ

B-wm nm©

C-Ascidia

K. wn‡gvwmj Kx? 1

L. ‡kÖwYweb¨v‡mi avc¸wj wjL| 2

M. A I B Gi Zzjbv Ki| 3

N. C †giæ`Ûx wKbv-we‡kølY Ki| 4