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    • Posted by Rahul Kumar 8 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Shubham Anand 8 years ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Anant Sharma 8 years ago

    Electron affinity increases while moving from left to righ along a period But decreases while moving down the group

    1Thank You

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    • Posted by Harshit Aggarwal 8 years ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Harshit Aggarwal 8 years ago

    Bhai mana physics ka pucha question math ka nhi but bhai thanxx

    1Thank You

    Ritika Thakur 8 years ago

    +i = √1 -i = √-1

    1Thank You

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    • Posted by Me Souhardee❤️ 8 years ago

    CBSE > Class 11 > Chemistry
    • 4 answers

    Deepak Kumar 8 years ago

    .

    1Thank You

    A Z 8 years ago

    Water is a substance which can act either as an acid or a base, depending upon the nature of the other substance. So it's nature is amphoteric. As it can accept a proton and can act like a base or it can donate a proton and acts as acid.

    3Thank You

    Abhinav Kalaliya 8 years ago

    water is base as well as acid according to arrhenious. so it is amphoteric

    2Thank You

    Abhishek Pandey 8 years ago

    It is natural thing. It the type of making of Man which formula is 2H+O.It gives energy to the body.

    1Thank You

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    • Posted by Karan Gunwant 8 years ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Abhinav Kalaliya 8 years ago

    gain of electron...addition of hydrogen.. .removal of oxygen

    1Thank You

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    • Posted by Abishek K 8 years ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Varun Banda 8 years ago

    The four laws of thermodynamics are: 

    Zerothlaw of thermodynamics: If two systems are in thermal equilibrium with a third system, they are in thermal equilibrium with each other. This law helps define the concept of temperature. 

    Firstlaw of thermodynamics: When energy passes, as work, as heat, or with matter, into or out from a system, the system's internal energy changes in accord with the law of conservation of energy. Equivalently, perpetual motion machines of the first kind (machines that produce work with no energy input) are impossible.

    Second law of thermodynamics: In a natural thermodynamic process, the sum of the entropies of the interacting thermodynamic systems increases. Equivalently, perpetual motion machines of the second kind (machines that spontaneously convert thermal energy into mechanical work) are impossible. 

    Thirdlaw of thermodynamics: The entropy of a system approaches a constant value as the temperature approaches absolute zero.[2] With the exception of non-crystalline solids (glasses) the entropy of a system at absolute zero is typically close to zero, and is equal to the natural logarithm of the product of the quantum ground states.

    4Thank You

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    • Posted by Abishek K 8 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Bikramjeet Singh Jamwal 8 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Neha Yadav 8 years ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Kanchan Lata 8 years ago

    Bayer's process is the refining bauxite to produce aluminium oxide (alumina) . Bauxite is the most important ore of aluminium.

    5Thank You

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    • Posted by Naziya Niazi 8 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Sherjang Mangat 8 years ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Ritika Thakur 8 years ago

    Cp - Cv = R

    2Thank You

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    • Posted by Aditya Sah 8 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Sparsh Gupta 8 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Deva Senapathi 8 years ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Ritika Thakur 8 years ago

    Temperature is the degree of hotness or coldness.

    2Thank You

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    • Posted by Akshya Karwasara 8 years ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Himanshu Sharma 8 years ago

    This reaction presence of dry ether

    0Thank You

    Shivam Rana 8 years ago

    CH3 - Br + 2Na + Br - CH3 ---------->CH3 - CH3 + 2NaBr Bromoethane. Dry ether. Ethane

    1Thank You

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    • Posted by Mohammad Zaid Siddiqi 8 years ago

    CBSE > Class 11 > Chemistry
    • 3 answers

    Abhinav Kalaliya 8 years ago

    aqueous NaCl

    1Thank You

    Divyanshu Gupta 8 years ago

    10% NaCl in water then the solution form is called as brine

    1Thank You

    Mohammad Zaid Siddiqi 8 years ago

    Saturated solution of Nacl

    1Thank You

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    • Posted by Pintu Narula 8 years ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Abhinav Kalaliya 8 years ago

    Favour maximum alkylated alkene

    1Thank You

    Aditi Singh 8 years ago

    Saytzeff rule (or Zaitsev's rule, Saytzev rule) is an empirical rule for predicting the favored alkene product(s) in elimination reactions.

    0Thank You

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    • Posted by Prince Raj 8 years ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Yash Dubey 8 years ago

    a number which occurs in the theoretical expression for the value of some quantized property of a subatomic particle, atom, or molecule and can only have certain integral or half-integral values.

    2Thank You

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    • Posted by Nikhil Malik 8 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Anubhav Gorakhiya 8 years ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Pragya Gupta 8 years ago

    In le chatelier principle , If there is any change in equilibrium, then equilibrium shifts in that direction that tend to undo the effect. For example Consider a reaction is in equilibrium. Now , If we remove product in equilibrium ,then the no. Of moles increase in reactant side and therefore reaction proceed in forward direction to balance moles concentration in products side to undo the effect

    1Thank You

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    • Posted by Kaviyadharshini Vijayagopal 8 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Tejashvi Choudhary 8 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Sudhanshu Pandey 8 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Harshada Mane 8 years ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Pragya Gupta 8 years ago

    Physical process of equilibrium involve: solid - liquid equilibrium, liquid - vapour equilibrium and solid - vapour equilibrium. •In solid-liquid equilibrium , evaporation occurs. Rate of melting ice =rate of flowing water. •In liquid vapour equilibrium, condensation occurs. In this , vapour pressure is constant at given temperature. •In solid vapour equilibrium, sublimation occurs.

    0Thank You

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    • Posted by Levy Chan Pandey 8 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Abhi Shek 8 years ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Shaurya Singh 8 years ago

    12

    0Thank You

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    • Posted by Vyahyati Dubey 8 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Himanshu Singh Singh 8 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Himanshu Singh Singh 8 years ago

    CBSE > Class 11 > Chemistry
    • 3 answers

    Chandan Kumar Soni 8 years ago

    Group 1 element alkali metal.

    0Thank You

    Prince Chaudhary 8 years ago

    Any of the elements lithium, sodium, potassium, rubidium, caesium and francima occupying Group I of the periodic table . 1.They are very reactive. 2. The atomic radius of these elements are increased one by one due to increasement in atomic number. 3. The ionisation enthalpy of these elements decrease when we move up to down in the group becoz the atomic size is increased and easily remove electrons. 4. Hydration enthalpy is inversely proportional to ionisation enthalpy. 5. They form ionic compound. 6. They have low melting and boiling point which decrease down the group becoz the size of metal increase.

    0Thank You

    Amar Kumar 8 years ago

    An alkali metal is any of the elements found in Group IA of the periodic table. Alkali metals are very reactive chemical species which readily lose their one valence electron to form ionic compounds with nonmetals. Examples: Lithium, Potassium, Cesium.

    The alkali metals are so called because reaction with water forms alkalies (i.e., strong bases capable of neutralizing acids). Alkali metal, any of the six chemical elements that make up Group 1 of the periodic table namely, lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). 

    Sodium and potassium are the sixth and seventh most abundant of the elements.

    1Thank You

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    • Posted by Anurag Singh Betu Dau 8 years ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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