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STATEMENT -1 : Antiferromagnetic subatan...

STATEMENT -1 : Antiferromagnetic subatance becomes paramagentic on heating to
hight temperture .
STATEMENT -2 : Heating results in spins of electrons becoming random .

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Assertion (A) : Antiferromagnetic substances on heating to high temperature become paramagnetic. Reason (R ) : On heating, the randomization of spins occurs.

Each question contains STATEMENT-I(Assertion) and STATEMENT-2(Reason).the statement carefully and mark the correct answer accoring to the instrution given below: STATEMENT - 1 : All solute becomes more soluble in water at higher temperature. STATEMENT - 2 : Solubility of solute depends upon tempreature.

STATEMENT-1: The kinetic energy of photo-electrons increases with increase in frequency of incident light were vgtv_(o). STATEMENT-2: Whenever intenksity of light is increased the number of photo-electron ejected always increases.

each question contain STATEMENT-1(Assertion ) and STATEMENT - 2 (reason). examine the statement carefully and work the correct answer according to the instructions given below : STATEMENT-1: At pH of isoelectric point, the sol particle of amino acids neither move towards anode nor towards cathode. STATEMENT-2: Because at the isoelectric point, the concentration of conjugate base and conjugate acid of the Zwitter ions becomes equal and so one's charge is counterbalanced by others. if both the statement are TRUE and STATEMENT -2 is the correct explanation of STATEMENT - 1 , If both the statement are TRUE, STATEMENT -2 is NOT the correct explanation of STATEMENT -1 , If STATEMENT -1 is TRUE and STATEMENT is FALSE , If STATEMENT -1 is FALSE and STATEMENT -2 is TRUE.

STATEMENT-1: The ground state electronic configuration of introgen is STATEMENT-2: Electronic are filled in orbitals as per aufbau principle, Hund's rule of maximum spin multiplicity and puli's principle.

Each question contains STATEMENT-1 (Assertion) and STATEMENT-2( Reason). Examine the statements carefully and mark the correct answer according to the instruction given below: STATEMENT-1: For a reaction at equilibrium, the Gibb's free energy of reaction is minimum at constant temp. and pressure. STATEMENT-2: The Gibb's free energy of both reactants and products increases and become equal at equilibrium.

STATEMENT-1: We cannot add the electrode potential in order to get electrode potential of third electrode if no. of moles of electrons exchanged are not same. STATEMENT-2: Electrode potential is an extensive property

statement-1: If water is heated of 50^(@)C then pH will increase. STATEMENT-2: K_(w) increases with increase in temperature.

STATEMENT-1: Angular momentum of the electron in the orbit which has four subshellis (2h)/(pi) STATEMENT-2: Angular momentum of electron is quantized.

STATEMENT-1: An orbital cannot have more then two electrons and they must have opposite spins. STATEMENT-2: No two electrojns in an atom can have same set of all the four quantum numbers as per Pauli's exclusion principle.

MODERN PUBLICATION-SOLID STATE-EXERCISE
  1. Write the structure of benzal chloride

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  2. Mark true or false FCC has four atoms per unit cell

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  3. STATEMENT -1 : Antiferromagnetic subatance becomes paramagentic on he...

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  4. Fill ups The number of atoms for primitive unit cell is…………….for body ...

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  5. Electrical conductance of metals decreases with increase in temperatur...

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  6. Fill ups The substance which are strongly attracted by the magnetic fi...

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  7. What is the formula of a Compound in which the element Y forms hcp lat...

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  8. A Group 14 element is to be converted into n-type semiconductor by dop...

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  9. What is electrical conductivity in ionic solids due to ?

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  10. Fill ups The coordination number of each sphere in hcp is…………..in ccp ...

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  11. Fill ups The packing fraction of a simple unit cell is……………….. .

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  12. Fill ups The empty space in hcp is……………and that in the bcc packing is…...

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  13. In a body centred cubic structure, the space occupied to about

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  14. The number of octahedral void in bcc structure is:

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  15. Fill ups In a body centre cubic arrangement…………………atoms along the body...

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  16. Name any one solid in which both Frenkel and Schottky defects occur.

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  17. Fill ups If there is a large energy gap between the filled valence ban...

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  18. Fill ups In a body centred crystal of an element, the ratio of edge of...

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  19. Cow's milk is yellowish in colour because of the presence of

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  20. Choose the correct options: Lithium, sodium, potassium and rubidium cy...

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