AIPMT 2011 Prelims

171 Questions • 171 Minutes • 2011

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Q61
The correct order of increasing bond length of C–H, C–O, C–C and C=C is
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Q62
A gaseous mixture was prepared by taking equal mole of CO and N₂. If the total pressure of the mixture was found 1 atmosphere, the partial pressure of the nitrogen (N₂) in the mixture is
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Q63
Acidified K₂Cr₂O₇ solution turns green when Na₂SO₃ is added to it. This is due to the formation of
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Q64
Which of the following is least likely to behave as Lewis base?
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Q65
The complex [Pt(Py)(NH₃)BrCl] will have how many geometrical isomers?
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Q66
The complexes [Co(NH₃)₆][Cr(CN)₆] and [Cr(NH₃)₆][Co(CN)₆] are the examples of which type of isomerism?
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Q67
The d-electron configurations of Cr²⁺, Mn²⁺, Fe²⁺ and Co²⁺ are d⁴, d⁵, d⁶ and d⁷ respectively. Which one of the following will exhibit minimum paramagnetic behaviour? (At. nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)
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Q68
Of the following complex ions, which is diamagnetic in nature?
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Q69
Which of the following has the minimum bond length?
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Q70
The value of ΔH for the reaction X₂(g) + 4Y₂(g) ⇌ 2XY₄(g) is less than zero. Formation of XY₄(g) will be favoured at
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Q71
Which of the following pairs of metals is purified by van Arkel method?
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Q72
What is the product obtained in the following reaction? C₆H₅NO₂ —(Zn, NH₄Cl)→ ?
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Q73
In a set of reactions m-bromobenzoic acid (A) gave a product D: A —(SOCl₂)→ B —(NH₃)→ C —(NaOH, Br₂)→ D Identify the product D.
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Q74
In Dumas' method of estimation of nitrogen 0.35 g of an organic compound gave 55 mL of nitrogen collected at 300 K temperature and 715 mm pressure. The percentage composition of nitrogen in the compound would be (Aqueous tension at 300 K = 15 mm)
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Q75
Which one is a nucleophilic substitution reaction among the following?
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Q76
Which of the following elements is present as the impurity to the maximum extent in the pig iron?
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Q77
Considering the state of hybridization of carbon atoms, find out the molecule among the following which is linear?
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Q78
In the following reactions, (a) CH₃–CH(CH₃)–CH(OH)–CH₃ —(H⁺/heat)→ A (major product) + B (minor product) (b) A —(HBr, dark, in absence of peroxide)→ C (major product) + D (minor product) The major products (A) and (C) are respectively
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Q79
The Lassaigne's extract is boiled with conc. HNO₃ while testing for halogens. By doing so it
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Q80
Name the type of the structure of silicate in which one oxygen atom of [SiO₄]⁴⁻ is shared?
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Paper Info
  • Exam: AIPMT Prelims
  • Year: 2011
  • Questions: 171
  • Duration: 171 mins
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