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Day 472: JEE Mains Chemistry

5 questions. Try each one first, then open its answer.

  1. Question 1

    Chemical Thermodynamics. Asked once: 9 Apr 2024

    55
    When equal volume of 1MHCl1MHCl and 1MH2SO41MH_{2}SO_{4} are separately neutralised by excess volume of 1M1M NaOHNaOH solution. XX and ykJykJ of heat is liberated respectively. The value of y/xy/x is _____

  2. Question 2

    Classification of Elements and Periodicity. Asked once: 1 Feb 2024

    125
    Given below are two statements: Statement (I): Both metal and non-metal exist in pp and d-block elements. Statement (II): Non-metals have higher ionisation enthalpy and higher electronegativity than the metals. In the light of the above statements, choose the most appropriate answer from the option given below:

    Tap an option to check your answer.

  3. Question 3

    Coordination Compounds. Asked once: 2021 Paper 9

    43
    The correct structures of trans-[NiBr2(PPh3)2]\left[NiBr_2(PPh_3)_2\right] and meridional-[Co(NH3)3(NO2)3]\left[Co(NH_3)_3(NO_2)_3\right], respectively, are:

    Tap an option to check your answer.

  4. Question 4

    Electrochemistry. Asked once: 27 Jan 2024

    51
    The mass of silver (Molar mass of Ag : 108gmol−1108gmol^{- 1} ) displaced by a quantity of electricity which displaces 5600 mL5600\text{ }mL of O2O_{2} at S.T.P. will be _____ g.

  5. Question 5

    Equilibrium. Asked once: 29 Jan 2023

    52
    Water decomposes at 2300 K2300\text{ }K
    H2O(g)→H2( g)+12O2( g)H_{2}O(g) \rightarrow H_{2}(\text{ }g) +\frac{1}{2}O_{2}(\text{ }g)
    The percent of water decomposing at 2300 K2300\text{ }K and 1 bar is____ (Nearest integer). Equilibrium constant for the reaction is 2×10−32 \times10^{- 3} at 2300 K2300\text{ }K.