ek/;fed ijh{kk ekWMy iz'u&i= 2021
SECONDARY EXAMINATION, MODEL QUESTION PAPER-2021
ekWMy iz'u&i=
foKku SCIENCE
le;% 3¼ ?k.Vs iw.kkZd 80
ijh{kkfFkZ;ksa ds fy, lkekU; funZs'k %&
GENERAL INSTRUCTION TO THE EXAMINEES:
1- ijh{kkFkhZ loZizFke vius iz'u i= ij ukekad vfuok;Zr% fy[ksaA
Candidate must write first his/her Roll No. on the question paper compulsorily.
2- lHkh iz'u djus vfuok;Z gSA
All the questions are compulasory.
3- izR;sd iz'u dk mÙkj nh xbZ mÙkj iqfLrdk esa gh fy[ksaA
Write the answer to each question in the given answer book only.
4- ftu iz'uksa esa vkUrfjd [k.M gS mu lHkh ds mÙkj ,d lkFk gh fy[ksaA
For questions having more than one part the answers to those parts are to be written together in continuity.
5- iz'u i= ds fgUnh ij vaxzsth :ikUrj.k esa fdlh izdkj dh =qfV@ vUrj@fojks/kkHkkl gksus ij fgUnh Hkk"kk ds iz'u dks lgh ekusaA
If there is any error/difference/contradiction in Hindi & English version of the question paper, the question of the Hindi version should be treated valid.
6- iz'u Øekad 28] 29] 30 esa vkUrfjd fodYi gSA 7- iz'uksa dk izdkj ,oa vad foHkktu fuEukuqlkj gS %&
[k.M iz'uksa dh la[;k dqy vad Hkkj vad izR;sd iz'u
[k.M&v(A)
1 ( i to x ), 2 to 1120 1
[k.M&c(B) 8 16 2
[k.M&l(C) 4 16 4
[k.M&n(D) 2 10 5
[k.M&;(E) 3 18 6
¼[k.M v½
Section-A
iz'u &1 fuEukafdr iz'uksa esa fn;s x;s lgh fodYi dk p;u dj mÙkjiqfLrdk esa fyf[k, &
¼i½ lkekU; jDr pki ¼flLVksfyd@Mk;LVksfyd½ gksrk gS& 1
¼v½ 120@80 Hg mm ¼c½ 150@90 Hg mm
¼l½ 170@60 Hg mm ¼n½ 140@60 Hg mm
The Normal blood pressure (systolic/diastolic) is -
¼A½ 120@80 Hg mm ¼ B½ 150@90 Hg mm ¼ C½ 170@60 Hg mm ¼D ½ 140@60 Hg mm
¼ii½ foVkfeu lh dk jklk;fud uke gS & 1
¼v½,sLdkfcZd vEy ¼c½ dsfYlQsjksy
¼l½ jkbZcks¶ysfou ¼n½ fu;kflu
Chemical name of Vitamin C is -
¼A½ Ascorbic acid ¼ B½ Calciferol
¼ C½ Riboflavin ¼D½ Niacin
¼iii½ vk;ksMhu dh deh ls gksus okyk jksx gS & 1
¼v½ jrkSa/kh ¼c½ fjdsV~l
¼l½?ksa?kk ;k xyx.M ¼n½ cka>iu Disease caused due to deficiency of Iodine.
¼A½ Night Blindness ¼ B½ Rickets
¼ C½ Goiter ¼D½ Sterility
¼iv½es.My us vkuqokaf'kdh laca/kh iz;ksx fdl ikni ij fd, \ 1
¼v½ VekVj ¼c½ lsc
¼l½ m|ku eVj ¼n½ xktj
Mendel's experiments related to Genetics was done on which plants ?
¼A½ Tomato ¼ B½ Apple
¼ C½ Garden pea ¼D½ Carrot
¼v½ izFke mRikfnr izfrj{kh gS & 1
¼v½ IgE ¼[k½ IgD
¼l½ IgG ¼n½ IgM
The first antibody produced is ?
¼A½ IgE ¼ B½ IgD
¼ C½ IgG ¼D½ IgM
¼vi½ loZnkrk jDr lewg gS & 1
¼v½ jDr lewg *AB* ¼c½ jDr lewg *O*
¼l½ jDr lewg *A* ¼n½ jDr lewg *B*
Universal donor blood group is -
¼A½ Blood group 'AB ' ¼ B½ Blood group 'o' ¼ C½ Blood group 'A' ¼D½ Blood group 'B'
¼vii½ jDr lewg dh [kkst fdlus dh \ 1
¼v½ dkyZ yS.M LVhuj us ¼c½ es.My us
¼l½ csVlu us ¼?k½ jnjQksMZ us
Who discovered the blood group -
¼A½ Karl Landsteiner ¼ B½ mendal
¼ C½ Batson ¼D½ Rutherford
¼viii½ beyh esa ik;k tkus okyk vEy gS & 1
¼v½ flfVªd vEy ¼c½,flfVd vEy
¼l½ gkbZMªksDyksfjd vEy ¼n½ VkVZfjd vEy Which acid is found in tamarind
¼A½ citric acid ¼ B½ acetic acid
¼ C½ Hydrochloric acid ¼D½ Tartaric acid
¼ix½ nksuksa fn'kkvksa esa gksus okyh vfHkfØ;k gS & 1
¼v½ vuqRØe.kh; vfHkfØ;k ¼c½ mRØe.kh; vfHkfØ;k ¼l½ vip;u vfHkfØ;k ¼n½ vkWDlhdj.k vfHkfØ;k Reaction which occurs in both directions .
¼A½ Irreversible reaction ¼ B½ reversible reaction
¼ C½ Reduction reaction ¼D½ Oxidation reaction
¼x½ izdk'k dk osx lokZf/kd gksrk gS & 1
¼v½ ikuh esa ¼c½ dkap esa
¼l½ fuokZr esa ¼n½ fXyljhu esa
Speed of light will be maximum in -
¼A½ Water ¼ B½ Glass
¼ C½ Vaccum ¼D½ Glycerin
fuEukafdr iz'uksa ds mÙkj ,d iafDr esa nhft, &
iz- 2 ySal 'kfDr dks ifjHkkf"kr dhft,A 1
Define Power of lens.
iz- 3 vko/kZurk dks ifjHkkf"kr dhft,A 1
Define Magnification.
iz- 4 dk;Z dk ek=d fyf[k, 1
Write unit of work.
iz- 5 'kfDr dks ifjHkkf"kr dhft,A 1
Define Power.
iz- 6 lfjLdk vH;kj.k fdl ftys esa fLFkr gSA 1
In which district 'Sariska Sanctuary' is Located ?
iz- 7 mM+u fxygjh fdl oU;tho vH;kj.k esa ikbZ tkrh gS \ 1
Fyling squirrel is found in which wild life Sanctuary ?
iz - 8 LFkkuc) iztkfr fdls dgrs gSa \ 1
What do you mean by 'Endemic Species' ?
fjDr LFkku dh iwfZrZ dj mÙkj mÙkj iqfLrdk esa fyf[k,A
iz- 9 vUrjjk"Vªh; tSo fofo/krk fnol --- dks euk;k tkrk gSA 1
International Biodiversity day is Celebrated on ...
iz- 10 Hkkjr dk jk"Vªh; tyh; tho --- gSA 1
National Aquatic animal of India is ... ...
iz- 11 tho tUrqvksa esa ikbZ tkus okyh fofHkUurk] fo"kerk rFkk ikfjfLFkfrdh; tfVyrk ---dgykrh
gSA 1
The diversity, asymmetry and ecological Complexity found among the biological organisms is called...
[k.M & c
Section-B
iz- 12 fuEu dks lqesfyr dhft, & ½ X 4 = 2
dkWye A ¼foVkfeu½ dkWye B ¼foVkfeu dh deh ls gksus okys jksx½
(i) foVkfeu & A (i) fjdsV~l
(ii) foVkfeu & C (ii) LdohZ
(iii) foVkfeu & D (iii) isysxzk
(iv) foVkfeu & B3 (iv) jrkSa/kh
Match the following -
Column A (Vitamin) Column B (Deficiency disease due to Vitamin)
(i)Vitamin A (i) Rickets
(ii) Vitamin C (ii) Scurvy
(iii) Vitamin D (iii) Pellagra
(iv) Vitamin B (iv) Night Blindness
iz- 13 es.My us vius iz;ksx ds fy, eVj ds ikS/ks dks gh D;ksa pquk \ dkj.k Li"V dhft, 2
Why did mendel select Pea plant for his experiments ? Give reasons.
iz- 14 nSfud thou esa iz;qDr gksus okys nks vEyksa ,oa nks {kkjksa ds uke fyf[k,A ½ X 4 = 2 Write the name and uses of two strong acids and two strong bases used in daily life ?
iz- 15 oU;thoksa ds foyqIr gksus ds nks dkj.k fyf[k,A 1$1¾ 2
Write two reasons for the extinction of wild life animal.
iz- 16 ladVxzLr iztkfr;ksa dks foyqIr gksus ls cpkus ds fy, jk"Vªh; Lrj ij D;k iz;kl fd, tk ldrs
gS \ nks lq>ko fyf[k,A 2
Write two suggestions for the National level efforts made for the conservation of endangered species.
iz- 17 i`Foh dh vkUrfjd lajpuk dk ukekafdr fp= cukb,A 2
Draw the Labelled diagram of showing the internal structure of the Earth.
iz- 18 lqesfyr dhft, & ½ X 4 = 2
dkWye A dkWye B
(i) xsgw (i) ft;k est
(ii) eDdk (ii) lkblj ,sfjfVue
(iii) puk (iii) vksjkbtk lsVkboe
(iv)pkoy (iv) fVªfVde ,LVkboe
Match the Columns -
Column A Column B
(i) Wheat (i) Zea Maize
(ii) Mai (ii) Cicer arientenum
(iii) Gram (iii) Oryza satirum
(iv) Rice (iv) Triticum aestivum
iz- 19 (i) Hkkjr esa foKku fnol fdl fnu euk;k tkrk gS \ 1$1 = 2 (ii) **cMZ esu vkWQ bf.M;k^^ ds uke ls fdl oSKkfud dks tkuk tkrk gS\
(i) On Which date science day is celebrated in India ? (ii)Which scientist is known by the name "Bird Man of India"
[k.M &l
Section-C
iz- 20 fVIi.kh fyf[k,A 2$2 = 4
(i) e/kqeD[kh ikyu
(ii) yk[k dhV lao/kZu vFkok fVIi.kh fyf[k,A
(i) js'ke dhV ikyu
(ii) Ms;jh m|ksx
Write short note on- (i) Apieulture
(ii) Lac culture or
Write short note on- (i) Sericulture (ii) Dairy Industry.
iz- 21 fdUgha nks vkUrfjd foorZfud 'kfDr;ksa dh O;k[;k dhft,A 2$2 = 4
vFkok
fdUgha nks ckg~; foorZfud 'kfDr;ksa dh O;k[;k dhft,A
Describe any two Internal tectonic forces.
OR Describe any two External tectonic forces.
iz- 22 MkW- ,-ih-ts- vCnqy dyke dk thou o`r ,oa foKku esa muds ;ksxnku dk o.kZu dhft,A 2$2 = 4
vFkok
lj lh-oh- jeu ds thou o`r ,oa foKku esa muds ;ksxnku dk o.kZu dhft,A
Discuss the life history of Dr. A.P.J. Abdul Kalam and his contribution in science.
or
Discuss the life history of Sir C.V. Raman and his contribution in science.
iz- 23 Lo% LFkkus laj{k.k ij fVIi.kh fyf[k,A 4
vFkok cfg LFkkus laj{k.k ij fVIi.kh fyf[k,A
Write short Note on In-situ Conservation.
or Write short Note on Ex-situ Conservation.
[k.M & n
Section-D
iz- 24 (i) ;fn vkiru dks.k dk eku 45o gS rks ijkorZu dks.k dk eku fdruk gksxkA 2$3 = 5
(ii) ,d fcEc mÙky ySal ls 5 ls-eh- nwjh ij j[kk gS] ;fn ySal dh Qksdl nwjh 20 ls-eh- gks rks izfrfcEc dh fLFkfr ,oa Lo:i D;k gksxk \
vFkok
(i) ,d ySal dh {kerk $ 4 Mk;IVj gS rks bldh Qksdl nwjh D;k gksxh \
(ii) ,d vory niZ.k dh Qksdl nwjh 30 ls-eh- gS] ;fn ,d fcEc 15 ls-eh- nwjh ij j[kk tkrk gS rks izfrfcEc dh fLFkfr ,oa Lo:i D;k gksxkA
(i) If incident angle is 45o than what is the value of reflection angle.
(ii)An object is placed at 5 cm. from a convex Lens. If focal length of convex lens is 20 cm. then find the position and nature of the image ?
OR
(i) The Power of a lens is the dieoptor. what will be its focal length ?
(ii) Focal length of a concave mirror is 30 c.m. if an object is placed at 15 cm. from the mirror then find the image position and its nature.
iz- 25 dey ,oa gjh'k nksuksa ,d igkMh ij p<rs gS ftldh m¡pkbZ 15 ehVj gSA dey ,oa gjh'k nksuksa dk otu cjkcj gS tks fd 38 fd-xzke gSA dey ml igkMh ds 'kh"kZ ij 19 lSd.M esa igqaprk gS tcfd gjh'k 15 lSd.M esa gh igkMh ds 'kh"kZ ij igaqp tkrk gSA nksuksa }kjk igkMh ij p<+us esa O;; dh xbZ 'kfDr dk i`Fkd & i`Fkd eku D;k gksxkA (g = 10 m/s2) 2$3 = 5
vFkok
(i) 60 W dk ,d cYc 6 ?k.Vs izfrfnu tyk;k tkrk gS rks 30 fnu esa dqy fdrus fo|qr ;wfuV dk miHkksx gksxk \
(ii) ,d e'khu ls 30 fd-xzk- dh oLrq dks 10 ehVj m¡pkbZ ij ys tk;k tkrk gS rks e'khu }kjk fd;k x;k dk;Z fdruk gksxk \
Kamal and Harish climb a 15m hill. Kamal and Harish has mass 38kg. each. Kamal reach top of hill in 19sec while harish reach top of hill in 15 sec. Find the power used by both of them to climb a hill. (g = 10 mls2)
OR
(i) A bulb of 60 w is used 6 hour per day for 30 days then what will be the energy consumption in electric unit.
(ii) If an object of 30 kg is lifted to 10m height with the help of a mechine calculate the work done by the machine.
[k.M& ;
Section-E
iz- 26 (i) ekuo ikpu ra= dk ukekafdr fp= cukb,A 3$3 = 6 (ii) ekuo esa ikpu dh fØ;k fof/k dk o.kZu dhft,A
vFkok (i) ekuo 'olu ra= dk ukekafdr fp= cukb,A
(ii) ekuo esa 'olu dh fØ;k fof/k dk o.kZu dhft,A vFkok
(i) ekuo mRltZu ra= dk ukekafdr fp= cukb,A
(ii) ekuo esa mRltZu dh fØ;k fof/k dk o.kZu dhft,A
(i) Draw a labelled diagram of human digestive system.
(ii) Describe mechanism of digestion in human.
OR (i) Draw a labelled diagram of human respiratory system.
(ii) Describe mechanism of respiration in human.
OR (i) Draw a labelled diagram of human excretory system.
(ii) Describe mechanism of excretion in human.
iz- 27 fVIi.kh fyf[k,A 2$2$2 =6
(i) vkjsfu;l ladYiuk
(ii) czkaLVsM &yksjh ladYiuk
(iii) yqbZl ladYiuk
vFkok fVIi.kh fyf[k,A
(i) lksfM;e DyksjkbM ds mi;ksx ij
(ii) lksfM;e gkbMªkWDlkbM ds mi;ksx ij
(iii) cSfdax lksMk dk mi;ksx ij
vFkok fVIi.kh fyf[k,A
(i) pH Ldsy (ii) vEy o"kkZ
(iii) fojatd pw.kZ ds mi;ksx
Write short Note on (i) Arrhenius concept (ii) Bronsted-Lowry concept (iii) Lewis concept
OR (i) Uses of Sodium Chloride
(ii) Uses of Sodium hydroxide (iii) Uses of Baking Soda
OR (i) pH Scale
(ii) Acid Rain
(iii) Uses of Bleaching Powder
iz- 28 mnkgj.k lfgr O;k[;k dhft,A 2$2$2 =6
(i) la;kstu vfHkfØ;k
(ii) vi?kVuh vfHkfØ;k
(iii) foLFkkiu vfHkfØ;k
vFkok mnkgj.k lfgr O;k[;k dhft,A
(i) vkWDlhdj.k vfHkfØ;k
(ii) vip;u vfHkfØ;k
(iii) jsMkWDl vfHkfØ;k
vFkok mnkgj.k lfgr O;k[;k dhft,A
(i) mnklhuhdj.k vfHkfØ;k
(ii) lekaxh mRizsjd
(iii) tSo mRiszjd
Explain with example - (i) Addition reaction (ii) Dissociation reaction (iii) Replacement reaction
OR Explain with example -
(i) Oxidation reaction (ii) Reduction reaction (iii) Redox reaction
OR Explain with example -
(i) Neutralization reaction (ii) Homogeneous catalyst (iii) Bio-catalyst
