A. Number of electrons
B. Oxidation number
C. Number of ions
D. All A , B. & C.
Related Mcqs:
- Evaporative cooling process employs a combination of cooling and humidification in which the____________________?
A. Sensible heat is added
B. Sensible heat is removed and the latent heat is added
C. Latent heat is removed
D. Sensible heat is added and latent heat is removed - _____________ is the process of coating the surface of steel with aluminium oxide, thereby imparting it increased resistance to corrosion & oxidation upto a temperature of 700°C ?
A. Veneering
B. Galvanising
C. Electroplating
D. Calorising - Direct conversion of thermal energy to electrical energy is facilitated by the____________________?
A. Fuel cells
B. Photo voltaic cell
C. Magneto hydrodynamic generator
D. None of these - The temperature at which ferromagnetic material can no longer be magnetized by the outside forces, is termed as the____________________?
A. Critical point
B. Curie temperature
C. Inversion temperature
D. Eutectic temperature - Faraday’s law of electrolysis is related to the____________________?
A. Cation speed
B. Atomic number of the cation
C. Equivalent mass of the electrolyte
D. None of these - An abrupt and sudden fall in the reading of barometer is an indication of the____________________?
A. Storm
B. Rain
C. Clear weather
D. Cold wave - In inventory control theory, the economic order quantity (EOQ) is the____________________?
A. Lot size corresponding to break even analysis
B. Average level of inventory
C. Optimum lot size
D. None of these - Increase in temperature, in general results in the____________________?
A. Decrease in the viscosities of both liquids & gases
B. Increase in the viscosities of both liquids & gases
C. Increase in the viscosity of liquids and decrease in that of gases
D. Decrease in the viscosity of liquids and increase in that of gases - The thickness of oxide film is y at time t. If K1, K2 and K3 are the temperature dependent constants, the parabolic law of oxidation is given by __________________?
A. y2 = 2k1t + k2
B. y = k1 ln (k2t + k3)
C. y = k1 t + k2
D. y = k1t3 + k2 - Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is___________________?
A. Nickel
B. Cobalt
C. Vanadium
D. Platinum
