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Chemistry

Enzyme proved useful in cancer treatment is_______________?

Options:

  • A. Lactic dehydrogenase
  • B. Alkaline phosphatase
  • C. L-asparaginase
  • D. Cellulase
View Answer

C. L-asparaginase

Purines and pyrimidines are__________________?

Options:

  • A. Enzymes
  • B. Nitrogenous bases
  • C. Carbohydrates
  • D. Lipids
View Answer

B. Nitrogenous bases

The important function of burning zone in the rotary kilm is __________________?

Options:

  • A. to dry the moisture of slurry
  • B. to decompose lime stone to unslaked lime
  • C. combination of different oxides like CaO SiO2 Fe2O3 and Al2O3
  • D. to reduce the impurities
View Answer

C. combination of different oxides like CaO SiO2 Fe2O3 and Al2O3

The value of activation energy is primarily determined by_______________?

Options:

  • A. Temperature
  • B. Effective collision
  • C. Concentration of reactants
  • D. Chemical nature of reactants and products
View Answer

B. Effective collision

Which of the following type of reaction is 3rd order reaction_________________?

Options:

  • A. 2N2O5 = 2N2O4 + O3
  • B. NO + O3 ? NO2 + O2
  • C. 2FeCl3 + 6KI ? 2FeI2 + 6KCl + I2
  • D. None of these
View Answer

C. 2FeCl3 + 6KI ? 2FeI2 + 6KCl + I2

For determining the order of reaction we use__________________?

Options:

  • A. Refractometric method
  • B. Dilatometric method
  • C. Optical activity method
  • D. Half life method
View Answer

D. Half life method

Electricity in voltaic cell is produced due to_________________?

Options:

  • A. neutralization
  • B. oxidation
  • C. reduction
  • D. both B & C
View Answer

D. both B & C

The half cells are interconnected through________________?

Options:

  • A. wire
  • B. salt bridge
  • C. electric circuit
  • D. no connection exists
View Answer

B. salt bridge

Secondary cell is_____________________?

Options:

  • A. rechargeable
  • B. non rechargeable
  • C. electrolytic cell
  • D. Daniel cell
View Answer

A. rechargeable

Which of the following can form a chealate______________________?

Options:

  • A. ammine
  • B. oxalato
  • C. carbonyl
  • D. cyano
View Answer

B. oxalato

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