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    • Posted by Md Aaquib Akhtar 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Vikas Semwal 6 years, 3 months ago

    Because at anode it liberate H+ ion and in cathode it liberate H2 gas

    0Thank You

    Khushi Singh 6 years, 3 months ago

    Bcz it is used as std. electrode potential

    0Thank You

    ANSWER

    • Posted by Tannu Madaan 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Nisha Kaushik 6 years, 3 months ago

    The rxn in which 2 molecules combine to form a single molecule. A small molecule often water is removed during condensation rxn.

    0Thank You

    ANSWER

    • Posted by Swami Shinde 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Yogita Ingle 6 years, 3 months ago

    An oxide is a binary compound obtained when oxygen reacts with another element. On the premise of their oxygen content, oxides can be extensively arranged into mixed oxides and simple oxides.

    A Simple Oxides

    Simple oxides are oxides that carry only that number of oxygen atoms as is allowed by the normal valency of its metal.

    Example: H2O, MgO& Al2O3.

    B Mixed Oxides

    Two simple oxides combine to form mixed oxides.

    Example: Lead dioxide (PbO2) and lead monoxide (PbO) together form the mixed oxide Red lead (Pb3O4).

    Ferric oxide (Fe2O3) and ferrous oxide (FeO) together form the mixed oxide Ferro-ferric oxide (Fe3O4).

    0Thank You

    ANSWER

    • Posted by Jitendra Kumar 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Ron Vineetahuja 6 years, 3 months ago

    Aluminium

    0Thank You

    Aryan Maurya 6 years, 3 months ago

    Most abundant element in ? crust... 0>si>Al>Fe>Ca>Na>K>Mg>H>Ti

    0Thank You

    Harsh Rawat 6 years, 3 months ago

    Aluminium

    2Thank You

    ANSWER

    • Posted by Tannu Madaan 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Kartik Pant 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 6 answers

    Neha Choudhary 6 years, 3 months ago

    Sory its not phenol its phenyl *

    0Thank You

    Neha Choudhary 6 years, 3 months ago

    Phenol

    0Thank You

    Ron Vineetahuja 6 years, 3 months ago

    Potenz hertz i.e hertz means hydrogen

    0Thank You

    Nisha Kaushik 6 years, 3 months ago

    Potential of hydrogen

    0Thank You

    Sunmeet Kaur Sachdeva 6 years, 3 months ago

    Potential pf hydrogen

    0Thank You

    Tony Starck??‍? 6 years, 3 months ago

    Pta hai

    4Thank You

    ANSWER

    • Posted by Dimrimchi Marak 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Mrutyunjay Khatua 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Anmol Devvanshi 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Meghavi Sisodiya 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Faiz Bhati 6 years, 3 months ago

    Benzene sulphonyl chloride

    2Thank You

    Yogita Ingle 6 years, 3 months ago

    Hinsberg reagent is an alternative name for benzene sulfonyl chloride. This name is given for its use in the Hinsberg test for the detection and distinction of primary, secondary, and tertiary amines in a given sample.

    This reagent is an organosulfur compound. Its chemical formula can be written as C6H5SO2Cl. The appearance of Hinsberg reagent can be described as a colorless oil that is viscous in nature and is soluble in organic solvents.

    This Reagent undergoes reaction with compounds that contain O-H and N-H bonds that are reactive in nature. It is used in the preparation of sulfonamides (via reaction with amines) and sulfonamide esters (via reaction with alcohol).

    1Thank You

    ANSWER

    • Posted by Paras Sharma 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Manish Singh 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Manish Singh 6 years, 3 months ago

    Thanks

    1Thank You

    Nisha Kaushik 6 years, 3 months ago

    Because alkoxide ion is stronger base than hydroxide ion.

    2Thank You

    Nisha Kaushik 6 years, 3 months ago

    Water is more acidic than alcohol except methanol.

    1Thank You

    ANSWER

    • Posted by Rajsu Chandra Pandey 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Deeya Singh 6 years, 3 months ago

    Mg will be largest and Al3+ is smallest

    0Thank You

    Harshit Shekhar 6 years, 3 months ago

    Al will be largest and Mg2+ will be smallest

    0Thank You

    ANSWER

    • Posted by Kritika Garg 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Faiz Bhati 6 years, 3 months ago

    By hoffman bromide degradation reaction

    2Thank You

    Nisha Kaushik 6 years, 3 months ago

    By using reducing agent LiAlH4 or NaBH4.

    2Thank You

    ANSWER

    • Posted by Harsh Sharma 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    M!Ń! ?? 6 years, 3 months ago

    By contact process

    0Thank You

    Vikas Semwal 6 years, 3 months ago

    Contact process

    2Thank You

    ANSWER

    • Posted by Harsh Sharma 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    M!Ń! ?? 6 years, 3 months ago

    By pyrolusite ore

    0Thank You

    Vikas Semwal 6 years, 3 months ago

    By pyrolucite ore

    0Thank You

    ANSWER

    • Posted by Saikat Nayek 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Raman Brar 6 years, 3 months ago

    CH4 methane-contain one carbon atom, C2H6 is ethane -contain two carbon atom

    0Thank You

    ANSWER

    • Posted by Amol Gùpta 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 4 answers

    Amol Gùpta 6 years, 3 months ago

    Thanks

    0Thank You

    M!Ń! ?? 6 years, 3 months ago

    Vitamin k

    1Thank You

    Ayush Kumar Singh 6 years, 3 months ago

    Vitamin K

    3Thank You

    Rehan Ansari 6 years, 3 months ago

    Vitamin K

    5Thank You

    ANSWER

    • Posted by Vaibhav Killedar 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Raman Brar 6 years, 3 months ago

    When ethanol undergo catalysis hydrolsis then it change to alchol.ie. when H2SO4+H2O is used then it is known as catalysis hydrolysis. Here H2O accept H+ and change into H3O+and then react with ethene and change it into alchol.

    1Thank You

    ANSWER

    • Posted by Lion The King 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Neha Choudhary 6 years, 3 months ago

    Bt pd lena chances h ki questn aa jaye

    0Thank You

    Aditya Parkash 6 years, 3 months ago

    It is removed from board examination

    6Thank You

    ANSWER

    • Posted by Deepak Gupta 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Priya Yadav 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Manika Gupta 6 years, 3 months ago

    R-OH + SOCl2 —> R-Cl + HCl + SO2 The product other than chloroalkane are escapable thus tus pure chloroalkane is obtained

    1Thank You

    Ron Vineetahuja 6 years, 3 months ago

    It is the Darzen process we can use SoCl2 because site products can easily removed

    1Thank You

    ANSWER

    • Posted by Ayush Tiwari 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Nisha Kaushik 6 years, 3 months ago

    CrO4(2-)

    1Thank You

    ANSWER

    • Posted by Renu Garg 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Nisha Kaushik 6 years, 3 months ago

    Hydrates of carbon. These r the biomolecules consist of H, O and C in which H is in same ratio as in water.

    2Thank You

    ANSWER

    • Posted by Prashant Kumar 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Mahesh Kumar Prajapati 6 years, 3 months ago

    Solution is a homogeneous mixture and it's two types 1- solute(which is less amount in solution ) and 2- solvent (more amount in solution )..

    1Thank You

    Nisha Kaushik 6 years, 3 months ago

    Soln. is a homogeneous mixture of 2 compounds.

    3Thank You

    ANSWER

    • Posted by Prafful Agrawal 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Deeya Singh 6 years, 3 months ago

    No. Because a bidentate ligand binds with the central metal by forming two bonds from its two terminal ends at the same time whereas an ambident ligand can use only one of its terminal ends out of the two at a particular time.

    0Thank You

    ANSWER

    • Posted by Deepak Gupta 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Karanveer Singh Mann 6 years, 3 months ago

    Because during charging gain of electron takes place and the reaction is reverse cathode act as anode and anode act as cathode

    1Thank You

    ANSWER

    • Posted by Rishab Mishra 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Ron Vineetahuja 6 years, 3 months ago

    CH3CH2CH2OH

    0Thank You

    Prashant Tomar 6 years, 3 months ago

    CH3CH2CH2OH

    0Thank You

    ANSWER

    • Posted by Rishab Mishra 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 3 answers

    Nisha Kaushik 6 years, 3 months ago

    When CO2 is added in sodium phenoxide under the pressure of 4-7atm and temp. 400K and then acidification to form salicylic acid .

    3Thank You

    Shivansh Dubey 6 years, 3 months ago

    Wrong answer

    2Thank You

    Prashant Tomar 6 years, 3 months ago

    Phenol reacts with chloroform and aq. KOH to form salicylaldehyde. C6H5-OH + CHCl3 + KOH = o-OH-C6H4-CHO

    0Thank You

    ANSWER

    • Posted by Rishab Mishra 6 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Prashant Tomar 6 years, 3 months ago

    Aldehyde or ketone reacts with hydrgen cynide to form cyanohydrin R-CHO+HCN =R-CH(CN)-OH [cyanohydrin ]

    0Thank You

    ANSWER

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