Blood cells will remain as such in : from Chemistry NEET Year 20

Subject

Chemistry

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

41.

The vapour pressure will be lowest for :

  • 0.1 M sugar solution

  • 0.1 M KCl solution

  • 0.1 M Cu(NO3)2 solution

  • 0.1 M AgNO3 solution


42.

What is the name of element with atomic number 105 ?

  • Kurchatovium

  • Dubnium

  • Nobelium

  • Holmium


43.

Which of the following oxide does not form acidic aqueous solution ?

  • N2O3

  • NO2

  • N2O5

  • NO


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44.

Blood cells will remain as such in :

  • hypertonic solution

  • hypotonic solution

  • isotonic solution

  • none of the above


C.

isotonic solution

Living cells shrinks in hypertonic solution (plasmolysis) while bursts in hypotonic soutions (endosmosis) .There is no effect when living cells are kept in isotonic solution .


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45.

When Cu reacts with AgNO3 solution , the reaction takes place is :

  • Oxidation of Cu

  • Reduction of Cu

  • Oxidation of Ag

  • Reduction of NO3-


46.

Fluorine is the best oxidising agent because it has :

  • highest electron affinity

  • highest Eored

  • highest Eooxid

  • lowest electron effinity


47.

Bleaching action of SO2 is due to its :

  • oxidising property

  • acidic property

  • basic property

  • reducing property


48.

When I2 is passed through KCl , KF and KBr solutions :

  • Cl2 and Br2 are evolved

  • Cl2 is evolved

  • Cl2 , Br2 and F2 are evolved

  • none of the above


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49.

Which of the following dissolves in hot conc. NaOH solution ?

  • Fe

  • Zn

  • Cn

  • Ag


50.

Ionic mobility of Ag+ is (λAg+ = 5 x 10-1 ohm-1 cm2 eq-1) :

  • 5.2 x 10-9

  • 2.4 x 10-9

  • 1.52 x 10-9

  • 8.25 x 10-9


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