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Which of the following statements is not...

Which of the following statements is not ture ?

A

Paramagnetic substances are weakly attracted by a magnetic field.

B

Ferromagnetic substances cannot be magnetised permanently .

C

The domains in antiferromagnetic substance are oppositely oriented with respect to each other.

D

Pairing of electrons cancels their magnetic moments in the diamagnetic substances.

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The correct Answer is:
B
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NCERT FINGERTIPS-PRACTICE PAPER -1-Practice Paper 1
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  2. In hcp arrangement the coordination number is

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  3. Which of the following statements is not ture ?

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  4. Which of halogen acids indicated below is incorrect ?

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  5. Aqueous solution of nickel sulphate on treating with pyridine and then...

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  6. m-Chlorobenzaldehyde on reaction with conc. KOH at room temperature gi...

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  7. Which of the following decreases on dilution of electrolyte solution ...

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  8. Germanium is an example of

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  9. Which of the following synthesis gives 3-methyl -1- hexanol ?

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  10. Non-reducing sugar is

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  11. The electrode potential of oxidation half cell

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  12. In a cubic closed packed structure of mixed oxides the lattice is made...

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  13. Which of the following is not an actinide ?

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  14. Copper is extracted from copper pyrites ore by heating in a blast fur...

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  15. Alcohols can be converted to various types of gasoline (petrol) by sh...

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  16. In a set of reactions, acetic acid yielded a product D. The struc...

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  17. The element with atomic number 33 belongs to

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  18. For H(3)PO(3) and H(3)PO(4) the correct choice is

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  19. According to Arrhenius equation rate constant k is equal to Ae^(-E(a)/...

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  20. Among the electrolytes Na(2)SO(4) , CaCI(2), AI(2)(SO(4))(3) and NH(4...

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