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See the chapter-wise question analysis → English 1. There is no remedy _____ cancer. [JnU-D:10-11]
A. ofB. toC. forD. from2. The word 'Unparallel' is- [JnU-D:10-11]
(a) A noun
(b) An adverb
(c) A verb
(d) An adjective
A. A nounB. An adverbC. A verbD. An adjectivePhysics 2nd Paper 3. একটি আদর্শ ট্রান্সফরমারের মুখ্য কুণ্ডলীর ভোল্টেজ 15 V 15\text{V} 15 V 3 A 3\text{A} 3 A 25 V 25\text{V} 25 V
A. 5 A 5\text{A} 5 A B. 15 A 15\text{A} 15 A C. 3 A 3\text{A} 3 A D. 1.8 A 1.8\text{A} 1.8 A 4. একটি কাঁচ ম্যাবের সংকট কোণ 60 ∘ 60^\circ 6 0 ∘
A. 1 2 \frac{1}{\sqrt{2}} 2 1 B. 2 \sqrt{2} 2 C. 3 2 \frac{\sqrt{3}}{2} 2 3 D. 2 3 \frac{2}{\sqrt{3}} 3 2 Chemistry 2nd Paper 5. কোন বিক্রিয়াটি স্বতঃস্ফূর্তভাবে ঘটে? [JnU'10-11]
A. Z n ( s ) + C d 2 + ( a q ) ⇌ Z n 2 + ( a q ) + C d ( s ) ; E C d 2 + / c d ∘ = − 0.404 V , E Z n 2 + / Z n ∘ = − 0.763 V Zn(s) + Cd^{2+}(aq) \rightleftharpoons Zn^{2+}(aq) + Cd(s); \quad E^\circ_{Cd^{2+}/cd} = -0.404\text{V}, E^\circ_{Zn^{2+}/Zn} = -0.763\text{V} Z n ( s ) + C d 2 + ( a q ) ⇌ Z n 2 + ( a q ) + C d ( s ) ; E C d 2 + / c d ∘ = − 0.404 V , E Z n 2 + / Z n ∘ = − 0.763 V B. C u ( s ) + Z n S O 4 ( a q ) ⇌ C u S O 4 ( a q ) + Z n ( s ) ; E C u 2 + / C u ∘ = − 0.34 V , E Z n 2 + / Z n ∘ = − 0.76 V Cu(s) + ZnSO_4(aq) \rightleftharpoons CuSO_4(aq) + Zn(s); \quad E^\circ_{Cu^{2+}/Cu} = -0.34\text{V}, E^\circ_{Zn^{2+}/Zn} = -0.76\text{V} C u ( s ) + Z n S O 4 ( a q ) ⇌ C u S O 4 ( a q ) + Z n ( s ) ; E C u 2 + / C u ∘ = − 0.34 V , E Z n 2 + / Z n ∘ = − 0.76 V C. 2 A g ( s ) + 2 H + ( a q ) ⇌ 2 A g + ( a q ) + H 2 ( g ) ; E A g + / A g ∘ = 0.80 V 2Ag(s) + 2H^+(aq) \rightleftharpoons 2Ag^+(aq) + H_2(g); \quad E^\circ_{Ag^+/Ag} = 0.80\text{V} 2 A g ( s ) + 2 H + ( a q ) ⇌ 2 A g + ( a q ) + H 2 ( g ) ; E A g + / A g ∘ = 0.80 V D. 3 S n 2 + ( a q ) + 2 F e ( s ) ⇌ 2 F e 3 + ( a q ) + 3 S n ( s ) ; E F e 3 + / F e ∘ = 0.036 V , E S n 2 + / S n ∘ = − 0.140 V 3Sn^{2+}(aq) + 2Fe(s) \rightleftharpoons 2Fe^{3+}(aq) + 3Sn(s); \quad E^\circ_{Fe^{3+}/Fe} = 0.036\text{V}, E^\circ_{Sn^{2+}/Sn} = -0.140\text{V} 3 S n 2 + ( a q ) + 2 F e ( s ) ⇌ 2 F e 3 + ( a q ) + 3 S n ( s ) ; E F e 3 + / F e ∘ = 0.036 V , E S n 2 + / S n ∘ = − 0.140 V 6. কোন বিক্রিয়াটি স্বতঃস্ফূর্তভাবে ঘটে?
A. Zn(s) + Cd 2 + ( aq ) ⇔ Zn 2 + ( aq ) + Cd(s) \text{Zn(s)} + \text{Cd}^{2+}(\text{aq}) \Leftrightarrow \text{Zn}^{2+}(\text{aq}) + \text{Cd(s)} Zn(s) + Cd 2 + ( aq ) ⇔ Zn 2 + ( aq ) + Cd(s) E Cd 2 + / Cd ∘ = − 0.404 V , E Zn 2 + / Zn ∘ = − 0.763 V E^\circ_{\text{Cd}^{2+}/\text{Cd}} = -0.404\text{V}, E^\circ_{\text{Zn}^{2+}/\text{Zn}} = -0.763\text{V} E Cd 2 + / Cd ∘ = − 0.404 V , E Zn 2 + / Zn ∘ = − 0.763 V B. Cu(s) + ZnSO 4 ( aq ) ⇔ CuSO 4 ( aq ) + Zn(s) \text{Cu(s)} + \text{ZnSO}_4(\text{aq}) \Leftrightarrow \text{CuSO}_4(\text{aq}) + \text{Zn(s)} Cu(s) + ZnSO 4 ( aq ) ⇔ CuSO 4 ( aq ) + Zn(s) E Cu 2 + / Cu ∘ = − 0.34 V , E Zn 2 + / Zn ∘ = − 0.76 V E^\circ_{\text{Cu}^{2+}/\text{Cu}} = -0.34\text{V}, E^\circ_{\text{Zn}^{2+}/\text{Zn}} = -0.76\text{V} E Cu 2 + / Cu ∘ = − 0.34 V , E Zn 2 + / Zn ∘ = − 0.76 V C. 2 Ag(s) + 2 H + ( aq ) ⇔ 2 Ag + ( aq ) + H 2 ( g ) 2\text{Ag(s)} + 2\text{H}^+(\text{aq}) \Leftrightarrow 2\text{Ag}^+(\text{aq}) + \text{H}_2(\text{g}) 2 Ag(s) + 2 H + ( aq ) ⇔ 2 Ag + ( aq ) + H 2 ( g ) E Ag + / Ag ∘ = 0.80 V E^\circ_{\text{Ag}^+/\text{Ag}} = 0.80\text{V} E Ag + / Ag ∘ = 0.80 V D. 3 Sn 2 + ( aq ) + 2 Fe(s) ⇔ 2 Fe 3 + ( aq ) + 3 Sn(s) 3\text{Sn}^{2+}(\text{aq}) + 2\text{Fe(s)} \Leftrightarrow 2\text{Fe}^{3+}(\text{aq}) + 3\text{Sn(s)} 3 Sn 2 + ( aq ) + 2 Fe(s) ⇔ 2 Fe 3 + ( aq ) + 3 Sn(s) E Fe 3 + / Fe ∘ = 0.036 V , E Sn 2 + / Sn ∘ = − 0.140 V E^\circ_{\text{Fe}^{3+}/\text{Fe}} = 0.036\text{V}, E^\circ_{\text{Sn}^{2+}/\text{Sn}} = -0.140\text{V} E Fe 3 + / Fe ∘ = 0.036 V , E Sn 2 + / Sn ∘ = − 0.140 V Higher Math 1st Paper 7. sin 75 ∘ + sin 15 ∘ sin 75 ∘ − sin 15 ∘ \frac{\sin 75^\circ + \sin 15^\circ}{\sin 75^\circ - \sin 15^\circ} s i n 7 5 ∘ − s i n 1 5 ∘ s i n 7 5 ∘ + s i n 1 5 ∘
A. 5 \sqrt{5} 5 B. 3 \sqrt{3} 3 C. − 3 -\sqrt{3} − 3 D. − 5 -\sqrt{5} − 5 General Knowledge 8. মোট কয়টি বিষয়ে নোবেল পুরস্কার দেওয়া হয়? [DU-B: 04-05, DU-D: 02-03, JU-B: 14-15, JnU-D: 10-11]
A. ৭টিB. ৬টিC. ৫টিD. ৩টি9. যে দেশটি কখনও উপনিবেশ ছিল না/- কোন দেশটি অতীতে কখনও অন্য কোন দেশের উপনিবেশে পরিণত হয়নি? [BCS: 20th, DU-B: 17-18, DU-D: 07-08, 14-15, CU-D: 17-18, 13-14, JnU-D: 10-11, 09-10]
A. থাইল্যান্ডB. মায়ানমারC. ইন্দোনেশিয়াD. মালয়েশিয়া