Chemistry miscellaneous

Chemistry miscellaneous

Easy Questions
Moderate Questions
Difficult Questions

Chemistry

Nature and Composition of Substances
Atomic Structure
Radioactivity
Periodic classification of element
Chemistry in Every Day Life
Biomolecules
Hydrocarbons and Its Derivatives
Non Metals and Their Compounds
Metals and Their Compounds
Surface Chemistry
Electrolytes & Electrochemistry
Solutions
Thermodynamics and Energetics
Catalysis
Properties of Gases
Acids, Bases and Salt
Oxidation and Reduction
Chemical Bonding
Chemistry miscellaneous
  1. Nucleons are regarded as composites sub-particles known as








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    In quantum chromodynamics, nucleons are regarded as composites of three quarks (elementary particles) and pions are composites of two quarks. According to EOB’s rules, nucleons move as fermions while pions move as bosons.

    Correct Option: B

    In quantum chromodynamics, nucleons are regarded as composites of three quarks (elementary particles) and pions are composites of two quarks. According to EOB’s rules, nucleons move as fermions while pions move as bosons.

  1. The element absorbed both in cation and anion form is








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    Nitrogen, required in large quantities for healthy plant growth, is supplied either as a cation (ammonium - NH4+) or an anion (nitrate - NO3–). The ratio of these two forms of nitrogen in the nutrient solution can have large effects on both the rate and direction of pH changes with time.

    Correct Option: B

    Nitrogen, required in large quantities for healthy plant growth, is supplied either as a cation (ammonium - NH4+) or an anion (nitrate - NO3–). The ratio of these two forms of nitrogen in the nutrient solution can have large effects on both the rate and direction of pH changes with time.

  1. Antacid tablets consist of








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    An antacid is a base which neutralizes stomach acidity. The most common of these bases are hydroxides, carbonates, or bicarbonates such as Aluminum hydroxide, Calcium carbonate, Magnesium carbonate, Magnesium hydroxide, and Sodium bicarbonate.

    Correct Option: B

    An antacid is a base which neutralizes stomach acidity. The most common of these bases are hydroxides, carbonates, or bicarbonates such as Aluminum hydroxide, Calcium carbonate, Magnesium carbonate, Magnesium hydroxide, and Sodium bicarbonate.

  1. Poison used for killing rats is








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    Zinc phosphide is an inorganic compound that is used in pesticide products as a rodenticide. Formulated as attractive bait, it releases phosphine gas once it is exposed to acid and moisture in the stomach. The phosphine gas is very toxic to all animals.

    Correct Option: B

    Zinc phosphide is an inorganic compound that is used in pesticide products as a rodenticide. Formulated as attractive bait, it releases phosphine gas once it is exposed to acid and moisture in the stomach. The phosphine gas is very toxic to all animals.

  1. Which one of the following elements exhibits the greatest tendency to lose electrons ?








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    Alkali metals such as Lithium are the most electropositive elements in the periodic table. As alkali metals have low ionization energies, they have a great tendency to lose electrons forming uni-positive ions.

    Correct Option: B

    Alkali metals such as Lithium are the most electropositive elements in the periodic table. As alkali metals have low ionization energies, they have a great tendency to lose electrons forming uni-positive ions.