C++ | MCQs

    Q6281: When ethanamide is treated with phosphorus pentoxide it forms?

    جب ایتھنامائڈ کا علاج فاسفورس پینٹ آکسائیڈ کے ساتھ کیا جاتا ہے؟
    • A. None of these
    • B. Methyl cyanide
    • C. Carbamide
    • D. Ammonium phosphate

    Q6282: Axial lengths and inter-axial angles of a unit cell of crystals are known as _____?

    محوری لمبائی اور کرسٹل کے یونٹ سیل کے بین محوری زاویوں کو _____ کے نام سے جانا جاتا ہے؟
    • A. Crystal system
    • B. Lattice constants
    • C. Coordination number
    • D. None of these

    Q6283: Order of reaction is defined as _______?

    رد عمل کی ترتیب _______ کے طور پر بیان کی گئی ہے؟
    • A. Power of concentration terms in the rate law equation
    • B. Number of reactants
    • C. None of these
    • D. Rate of reactions

    Q6284: The Vulcanization of rubber ______?

    ربڑ کی واولکنائزیشن کیا ہے؟
    • A. Increases its ozone and oxygen reactivity
    • B. Converts its plasticity into elasticity
    • C. None of these
    • D. Increases its oil and solvent resistance

    Q6285: Which of the bonds shown by a dash --- has the greatest polarity?

    • A. H ----- OH
    • B. H ----- NH3
    • C. H ----- F
    • D. None of these

    Q6286: Water containing calcium and phosphate is called _____?

    کیلشیم اور فاسفیٹ پر مشتمل پانی کو _____ کہا جاتا ہے؟
    • A. Permanent soft water
    • B. None of these
    • C. Temporary hard water
    • D. Permanent hard water

    Q6287: Acid base reaction is an ______?

    تیزاب کی بنیاد کا رد عمل ایک ______ ہے؟
    • A. Endothermic reaction
    • B. None of these
    • C. Exothermic reaction
    • D. No heat exchange takes place

    Q6288: Phenols are ______?

    فینول ______ ہیں؟
    • A. Natural compounds
    • B. Basic in nature
    • C. None of these
    • D. Acidic in nature

    Q6289: A catalyst ______?

    ایک اتپریرک کیا ہے؟
    • A. Increases the activation energy
    • B. Increases the average kinetic energy of the reactants
    • C. Alters the reaction mechanism
    • D. None of these

    Q6290: An equilibrium constant of 1 for a reaction means that the reaction is _______?

    ایک ردعمل کے لئے 1 کا ایک مساوات کا مطلب یہ ہے کہ ردعمل _______ ہے؟
    • A. Very favourable and proceeds to mostly products with very little reactions left over
    • B. Not very favourable and will not form very much product
    • C. None of these
    • D. One that will yield 50% products and 50% reactants left over
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