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    • Posted by Preet Dedha 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Yogita Ingle 7 years 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.

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    • Posted by Pretty Rumut 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Ajay Kumar 7 years ago

    4

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    • Posted by Akash Gupta 7 years ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Aryan Rai 7 years ago

    Lone pair and bond pair

    2Thank You

    Komal Dhingra 7 years ago

    Lp is for lone pair and bp is for bond pair

    1Thank You

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    • Posted by Akash Gupta 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Mansi Sharma 7 years ago

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

    3Thank You

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    • Posted by Akash Gupta 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Mansi Sharma 7 years 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

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    • Posted by Akash Gupta 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Azmat Ali 7 years 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 .

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    • Posted by Akash Gupta 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Gaurav Tiwari 7 years 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

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    • Posted by Haritha Rani 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Srivinayak V 7 years ago

    Insulation,conveyor belt

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    • Posted by Ponnu P 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Kuldeep Gangwar 7 years ago

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

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    • Posted by Roshan Kumbhar 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Samriddhi Udaywal 7 years ago

    Dichlorodiphenyltrichloroethane CCl3NO2

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    • Posted by Vivek Singh 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Shubham Sharma 7 years ago

    Having impurities 2% of carbon

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    • Posted by Vivek Singh 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Shubham Sharma 7 years ago

    Having impurities of 4%

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    • Posted by Vivek Singh 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Roshan Kumbhar 7 years 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.

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    • Posted by Akash Gupta 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Yogita Ingle 7 years 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

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    • Posted by Sudipa Mohanty 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Tarun M 7 years ago

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

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    • Posted by Anuj Rai 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Tarun M 7 years ago

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

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    • Posted by Sanju Singh 7 years ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Yogita Ingle 7 years 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 ago

    Nucleotides are joined by this phosphodiester linkage?

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    • Posted by Naman Verma 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Nitika Neb 7 years 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

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    • Posted by Taskeen Khalid 7 years ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Shivani .. 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Nitika Neb 7 years 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

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    • Posted by Gurpreet Paul 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Ayush Kumar Gupta 7 years ago

    Read second part NCERT chemistry

    0Thank You

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    • Posted by Rohit Goraya 7 years ago

    CBSE > Class 12 > Chemistry
    • 5 answers

    Ravi Sharma 7 years ago

    52 divided by 2 into 1 plusminus 5

    0Thank You

    Nikhil Sahu 7 years ago

    26

    0Thank You

    Rawal Redhu 7 years ago

    26

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    Divya Sharma 7 years ago

    26

    0Thank You

    Robin Goswami 7 years ago

    26

    2Thank You

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    • Posted by Hitesh Kumar 7 years ago

    CBSE > Class 12 > Chemistry
    • 0 answers
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    • Posted by Manisha Sharma 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Aditya Vyas 7 years 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

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    • Posted by Manisha Sharma 7 years ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Aryan Rai 7 years ago

    CBSE > Class 12 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Zarifa Laskar 7 years ago

    CBSE > Class 12 > Chemistry
    • 0 answers
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    • Posted by H. S 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Nitika Neb 7 years 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

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    • Posted by Ashish Kr 7 years ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Aditya Vyas 7 years 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 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

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    • Posted by Anjali Thakut 7 years ago

    CBSE > Class 12 > Chemistry
    • 1 answers

    Nitika Neb 7 years 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.

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