IIT JEE 2009 P1 Q3

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Given that the abundances of isotopes ⁵⁴Fe, ⁵⁶Fe and ⁵⁷Fe are 5%, 90% and 5% respectively, the atomic mass of Fe is
(A)55.85
(B)55.95
(C)55.75
(D)56.05

#Miscellaneous #Past IIT JEE Questions

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7 Answers

62

Lokesh Verma ·2009-04-11 20:45:18

[url=http://iitjee2009solutions.targetiit.com]Solution Key with Question Paper of 2009 IIT JEE[/url]

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62

Lokesh Verma ·2009-04-12 03:50:12

Answer is (B)

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1

~AjInKyA~ ·2009-04-12 05:01:51

its so easy ,i solved this one as 1st question
n i got right !

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62

Lokesh Verma ·2009-04-12 05:09:57

yup :)

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21

tapanmast Vora ·2009-04-12 05:19:07

Sir, pl. tell me wer can i get 1pdf or sumthin wer all Qs + Ans are given.......

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1

RAY ·2009-04-12 08:29:32

couldnt possibly have been sumthing easier...

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1

skygirl ·2009-04-12 19:39:28

this was a STUPID one....

i think this is one q in which i gave too much time! ... thinking something more is there [3]

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Your Answer

Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

∫ ∫ ∫ ∫ ∫ ∬ ∬ ∬ ∬ ∬ ∭ ∭ ∭ ∭ ∭ ⨌ ⨌ ⨌ ⨌ ⨌

∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω