jee_main_2026_28_january_evening - The p-Block Elements Topics

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QUESTION #52 Properties Of Hydrogen Halides
Given below are two statements: Statement I: The increasing order of boiling point of hydrogen halides is HCl < HBr < HI < HF Statement II: The increasing order of melting point of hydrogen halides is HCl < HBr < HF < HI In the light of the above statements, choose the correct answer from the options given below:
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QUESTION #67 Borax Bead Test
Consider the following reactions. Na_2B_4O_7 xrightarrowDelta 2X + Y CuSO_4 + Y xrightarrowtextNon-Luminous flame Z + SO_3 2Z + 2X + textCarbon xrightarrowtextLuminous flame 2Q + Na_2B_4O_7 + CO The oxidation states of Cu in Z and Q, respectively are:
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)
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