The chief constituent of vinegar is
A. Formic acid
B. Acetic acid
C. Salycylic acid
D. Oxalic acid
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Vinegar made by fermentation from cane sugar contains
A. Palmitic acid
B. Lactic acid
C. Citric acid
D. Acetic acid
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Which one of the following is found in Vinegar ?
A. Acetic acid
B. Propionic acid
C. Formic acid
D. Butyric acid
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Which of the following is not a derivative of barbituric acid?
A. Nembutal
B. Amytal
C. Veronal
D. Equanil
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Which of the following substance's smell is similar to Ethanoic acid?
A. Tomato juice
B. Kerosene
C. Vinegar
D. Lemon
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The strongest acid of the following is
A. P-chlorophenol
B. M-nitrophenol
C. P-nitrophenol
D. O-nitrophenol
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Methanoic and ethanoic acids can be distinguished by the action of
A. NaHCO3
B. NaOH
C. Tollen's reagent
D. SOCl2
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Which of the following alkali metals has highest specific heat?
A. Caesium
B. Rubidium
C. Potassium
D. Lithium
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Among the fuels given below, the one with highest calorific value is
A. Coke
B. Coal
C. Wood
D. Natural gas
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Which of the following is the best fuel in terms of energy released per gram of fuel?
A. Hydrogen
B. Methane
C. Ethanol
D. Butane
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The heat value of combustion of Gasoline is
A. 12600 kJ/kg
B. 14600 kJ/kg
C. 39400 kJ/kg
D. 47000 kJ/kg
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Which one of the following gases has the highest calorific value?
A. Natural gas
B. Water gas
C. Coal gas
D. Indane gas
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When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in
A. Raman spectra
B. Absorption spectra
C. Emission spectra
D. Fluorescence
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If the equilibrium constants for the systems H2 + I2 -> 2HI and 2HI -> H2 + I2 are K1 and K2 respectively, the relationship between K1 and K2 is :
A. K1 = K2
B. K1 = 2K2
C. K1 = K2 /2
D. K1 = 1/K2
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The influence of temperature on reaction rate is predicted by
A. Van der Waals equation
B. Kirchhoff's equation
C. Arrhenius equation
D. Lewis equation
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Which among the following is used as a catalyst in the production of high octane fuels?
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Catalytic converters are generally made from :
A. Alkaline metals
B. Hydrogen
C. Transition metals
D. Carbon
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Which of the following is colourless?
A. Chlorine
B. Oxygen
C. Phosphorus
D. Sulphur
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Iodine value is used to estimate
A. Hydroxyl groups in oil
B. Alkali content in oil
C. Unsaturation in oil
D. Carboxylic groups in oil
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The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is
A. Xenon
B. Krypton
C. Argon
D. Helium
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