Stoichiometry Mcqs for Chemical


Q.  Beryllia (which is used in making crucibles for melting uranium & thorium) is superior to alumina in all respects for high temperature (> 1900°C ) use, except______________?

a. Cost
b. Electrical conductivity
c. Thermal conductivity
d. Fusion point


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Dissolving a solute in a solvent does not change its________________?
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MCQs:  ‘Cox’ chart which is useful in the design of a distillation column (particularly suitable for petroleum hydrocarbons) is a plot of the_____________?
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MCQs:  The number of water molecules present in a drop of water weighing 0.018 gm is 6.023 × __________?
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MCQs:  The amount of Zn (atomic weight = 65) required to form 224 c.c. of H2 at N.T.P. on treatment with dilute H2SO4will be _____________ gm?
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MCQs:  A vapor that exists above its critical temperature is termed as a _____________ vapor?
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MCQs:  Pick out the wrong unit conversion of temperature?
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MCQs:  Viscosity of 1 centipoise is equal to 1 Centistoke in case of________________?
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MCQs:  The heats of vaporisation of CS2, C2H5OH &H2O are 26.8, 38.6 & 40.6 KJ/kg.mole respectively. The order of decreasing inter-molecular forces in these liquids is________________?
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MCQs:  The gravimetric (i.e., by weight) composition of a vapor saturated gas is independent of the_______________?
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MCQs:  Heat of ____________ of a fuel is called its calorific value?
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MCQs:  A solution having a pH value of 5 is less acidic than the one having a pH value of 2 by a factor of ________________?
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MCQs:  The heat evolved in the combustion of benzene is represented by the equation: C6H6 + 7.5 O2 = 6CO2 + 3H2O, ΔH = 3264.6 kJ/kg. mole The heat energy change, when 39 gm of C6H6 is burnt in an open container, will be _____________ kJ/kgmole?
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MCQs:  A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be_______________?
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MCQs:  One of the specific gravity scales is “Brix” (used specifically for sugar solution). It is defined as ______________?
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MCQs:  With rise in temperature, the heat capacity of a substance___________________?
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MCQs:  For a neutral solution (pH = 7), the value of [H+] [OH-] is equal to_________________?
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MCQs:  A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is_________________?
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MCQs:  The heat capacity of a solid compound is calculated from the atomic heat capacities of its constituent elements with the help of the___________________?
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MCQs:  A solution with reasonably permanent pH is called a/an _______________ solution?
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MCQs:  Molality is defined as the number of gm moles of solute per _____________ of solvent?
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