No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question

    • Posted by Preet Dedha 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Yogita Ingle 7 years, 3 months ago

    Any cell or Battery (more than one cells connected in series) that we use daily as a source of electricity in basically a galvanic cell in which chemical energy of spontaneous redox reactions is converted into electrical energy.

    An ideal battery should have following desirable characters..

    • It should be reasonably light

    • It should be compact

    • Its voltage should not vary much during its life i.e., period of use.

    0Thank You

    ANSWER

    • Posted by Pretty Rumut 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Ajay Kumar 7 years, 3 months ago

    4

    1Thank You

    ANSWER

    • Posted by Akash Gupta 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Aryan Rai 7 years, 3 months ago

    Lone pair and bond pair

    2Thank You

    Komal Dhingra 7 years, 3 months ago

    Lp is for lone pair and bp is for bond pair

    1Thank You

    ANSWER

    • Posted by Akash Gupta 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Mansi Sharma 7 years, 3 months ago

    P4 + 3 NaOH + 3H2O =PH3 + 3NaH2PO2

    3Thank You

    ANSWER

    • Posted by Akash Gupta 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Mansi Sharma 7 years, 3 months ago

    Because of Lp- Bp repulsions in PH3 bond angle is less. In PH 4 all 4 orbitals are bonded while in PH3 there is a lone pair present .

    1Thank You

    ANSWER

    • Posted by Akash Gupta 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Azmat Ali 7 years, 3 months ago

    4 . As covalence of any atom is the number of bonds present around it with which it is attached to other atoms/groups , in N2O5 , there are 4 bonds between N-and O- . Out of these , 2 are single bonds and 1 double bond .

    1Thank You

    ANSWER

    • Posted by Akash Gupta 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Gaurav Tiwari 7 years, 3 months ago

    N2 is less reactive in room temperature because of N is very small in size and having less bond lenth=109.8pm, And its bond dissociation energy is quite high=946 Kj/M

    1Thank You

    ANSWER

    • Posted by Haritha Rani 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Srivinayak V 7 years, 3 months ago

    Insulation,conveyor belt

    0Thank You

    ANSWER

    • Posted by Ponnu P 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Kuldeep Gangwar 7 years, 3 months ago

    Because according to markonikov's rule .." (-) part goes to that carbon which has less no. Of hydrogen

    0Thank You

    ANSWER

    • Posted by Roshan Kumbhar 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Samriddhi Udaywal 7 years, 3 months ago

    Dichlorodiphenyltrichloroethane CCl3NO2

    0Thank You

    ANSWER

    • Posted by Vivek Singh 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Shubham Sharma 7 years, 3 months ago

    Having impurities 2% of carbon

    1Thank You

    ANSWER

    • Posted by Vivek Singh 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Shubham Sharma 7 years, 3 months ago

    Having impurities of 4%

    2Thank You

    ANSWER

    • Posted by Vivek Singh 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Roshan Kumbhar 7 years, 3 months ago

    Many of metals as Cu, Ag, Au, AL, Pb etc., are purified by this method. Here, the cathode is made up of pure metal and anode is made up of impure metal. The electrolyte used is in fact an aqueous solution of salt of the metal. Thus, Anode → impure metal Cathode → Pure metal Electrolyte → salt of metal in aqueous solution.

    0Thank You

    ANSWER

    • Posted by Akash Gupta 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Yogita Ingle 7 years, 3 months ago

    Glass is an amorphous solid and it is converted into crystalline form by alternate heating and cooling.  Glass objects of ancient monuments   undergo heating due to exposure to sunlight and are cooled at night and thus beome partly crystalline.  This gives them a partly milky appearance.

    3Thank You

    ANSWER

    • Posted by Sudipa Mohanty 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Tarun M 7 years, 3 months ago

    By removal of water in the presence of acid CH3-CH(CH3)-CH2OH + H+ = CH3-C(CH3)=CH2

    0Thank You

    ANSWER

    • Posted by Anuj Rai 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Tarun M 7 years, 3 months ago

    Dibromidobis(ethane-1,2-diamine)cobaltate(III)

    0Thank You

    ANSWER

    • Posted by Sanju Singh 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Yogita Ingle 7 years, 3 months ago

    A phospodiester bond is a covalent bond in which a phosphate group joins adjacent carbons through ester linkages. The bond is the result of a condensation reaction between a hydroxyl group of two sugar groups and a phosphate group. The diester bond between phosphoric acid and two sugar molecules in the DNA and RNA backbone links two nucelotides together to form oligonucleotide polymers. The phosphodiester bond links a 3' carbon to a 5' carbon in DNA and RNA.

     

    0Thank You

    Nikhil Sahu 7 years, 3 months ago

    Nucleotides are joined by this phosphodiester linkage?

    0Thank You

    ANSWER

    • Posted by Naman Verma 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Nitika Neb 7 years, 3 months ago

    PCl3 is reducing agent because in this compound P have +3 oxidation state whereas stable oxidation state of P is +5, so in the reaction P oxidises to +5 oxidation state (oxidation number) and reduces the another given compound in the chemical reaction

    1Thank You

    ANSWER

    • Posted by Taskeen Khalid 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Shivani .. 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Nitika Neb 7 years, 3 months ago

    A peptide bond is an amide type of covalent chemical bond linking two consecutive alpha-amino acids from C1 of one alpha-amino acid and N2 of another along a peptide or protein chain. It can also be called an eupeptide bond to separate it from an isopeptide bond, a different type of amide bond between two amino acids.

    1Thank You

    ANSWER

    • Posted by Gurpreet Paul 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Ayush Kumar Gupta 7 years, 3 months ago

    Read second part NCERT chemistry

    0Thank You

    ANSWER

    • Posted by Rohit Goraya 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 5 answers

    Ravi Sharma 7 years, 3 months ago

    52 divided by 2 into 1 plusminus 5

    0Thank You

    Nikhil Sahu 7 years, 3 months ago

    26

    0Thank You

    Rawal Redhu 7 years, 3 months ago

    26

    0Thank You

    Divya Sharma 7 years, 3 months ago

    26

    0Thank You

    Robin Goswami 7 years, 3 months ago

    26

    2Thank You

    ANSWER

    • Posted by Hitesh Kumar 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Manisha Sharma 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Aditya Vyas 7 years, 3 months ago

    As it gives +m effect then it is a withdrawing group and also it posses -ve charge then it behaves like a nucleophile

    2Thank You

    ANSWER

    • Posted by Manisha Sharma 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Aryan Rai 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Zarifa Laskar 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by H. S 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Nitika Neb 7 years, 3 months ago

    Lanthanoids are involved in the filling of 4f- orbitals whereas actinoids are involved in the filling of 5f-orbitals. The binding energy of 4f electrons is comparatively less than that of 5f-electrons. ... Lanthanides are non-radioactive in nature except promethium whereas all actinide series elements are radioactive.

    5Thank You

    ANSWER

    • Posted by Ashish Kr 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Aditya Vyas 7 years, 3 months ago

    Resonating structures are those structures which exist in nature these structure have charge on an particular atom as we see in hybrid there are partial double bond ,partial charges because of they are not stable over a particular atom and are integrating to surrounding atoms resonating structures for a compound are not single they are many in no. thus there is a need to form hybrid .

    0Thank You

    Nitika Neb 7 years, 3 months ago

    When more than one Lewis structure can be drawn, the molecule or ion is said to have resonance. The individual Lewis structures are termed contributing resonance structures. Resonance is a common feature of many molecules and ions of interest in organic chemistry.

    2Thank You

    ANSWER

    • Posted by Anjali Thakut 7 years, 3 months ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Nitika Neb 7 years, 3 months ago

    Rate expression is an equation for rate law and it relates the rate of a reaction to the rate constant and concentration of the reactants. Rate constant is the rate of the reaction when the concentration of the reactants is unity. It is defined by k.

    0Thank You

    ANSWER

    myCBSEguide App

    myCBSEguide

    Trusted by 1 Crore+ Students

    Install Now

    Test Generator

    Test Generator

    Create papers online. It's FREE.

    Try Now

    CUET Mock Tests

    CUET Mock Tests

    75,000+ questions to practice only on myCBSEguide app

    Install Now
    Google Play

    Download myCBSEguide App

    All Courses

    Other Websites

    CBSE Courses

    Resources

    Corporate

    NCERT Solutions

    CBSE Sample Papers

    All Content and Intellectual Property is under Copyright Protection | myCBSEguide.com ©2007-2026