Processing math: 100%




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31.

In the extraction of Cu, the metal is formed in the bessemer converter due to the reaction :


A) Cu2S+2Cu2O6Cu+SO2

B) Cu2S2Cu+S

C) Fe+Cu2O2Cu+FeO

D) 2Cu2O4Cu+O2



32.

The reagent (s) which can be used to distinguish acetophenone from benzophenone is (are)

 


A) 2,4-dinitrophenylhydrazine

B) aqueous solution of NaHSO3,

C) benedict reagent

D) I2andNa2Co3



33.

For the process H2O(l) (1 bar, 373 K) → H2O(S) (1 bar,373 K), the correct set of thermodynamic parameters isΔ

 

 


A) G=0,S=+ve

B) G=0,S=ve

C) G=+ve,S=0

D) G=ve,S=+ve



34.

Which of the following compounds is formed . when a mixture of K2Cr2O7 and NaCl is heated with conc. H2SO4 ?


A) CrO2Cl2

B) CrCl3

C) Cr2(SO4)3

D) Na2CrO4



35.

The chirality of the compound

1542021157_1351741_9a216fd617814ba2bf24417dac1e7202.png


A) R

B) S

C) E

D) Z



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