Thursday, May 28, 2015

Chemistry Quiz for SSC CGL 2015 Tier-1 Exam

SSC Quiz on Chemistry | Chemistry Quiz for SSC Exams | Chemistry Quiz for SSC CGL Exam

SSC Chemistry Quiz

SSC Chemistry Quiz

  • 2. "All the four quantum numbers of two electrons in an atom are not the same." It is the law of-

    1. Hund's
    2. Exclusion Principle of Pauli
    3. Uncertainty Principle of Hieenberg
    4. Avogardo's Law
    Answer And Explanation
    Answer: Option B
    Explanation:
    Note: The pauli exclusion principle is the quantum mechanical principle which states, no two identical fermions(particles with half-integer spin) may occupy the same quantum state simultaneously. A more rigorous statement is that the total wave function for two identical fermions is anti-symmetric with respect to exchange of the particles. For example, no two electrons in a single atom can have the same four quantum numbers.

SSC Chemistry Quiz

  • 3. The gas used for artificial fruit ripening of green fruit is-

    1. Ethylene
    2. Acetylene
    3. Ethane
    4. Methane
    Answer And Explanation
    Answer: Option A
    Explanation:
    Note: Ethylene can promote ripening in tomatoes, bananas, citrus, pineapples, dates, persimmons, pears, apple, melons, mangoes, avocados, papayas, and jujubes- a clear indication that the action of ethylene in general and widespread amongst a number of fruits.

SSC Chemistry Quiz

  • 4.When there are two electrons in the same orbit, they have:

    1. Same Spin
    2. Opposite Spin
    3. Same or Opposite Spin
    4. No spin
    Answer And Explanation
    Answer: Option B
    Explanation:
    Note:In the case of two electrons occupying the same orbital, the Pauli principal demands that they have opposite spin.

SSC Chemistry Quiz

  • 5. What is "Milk of Magnesia" Chemically?

    1. Magnesium Carbonate
    2. Sodium Bicarbonate
    3. Calcium Hydroxide
    4. Magnesium Hydroxide
    Answer And Explanation
    Answer: Option D
    Explanation:
    Note: Magnesium hydroxide is an inorganic compound with the chemical formula Mg(OH)2. As a suspension in water, it is often called milk of magnesia because of its milk-like appearance. The solid mineral form of magnesium hydroxide is known as brucite.

SSC Chemistry Quiz

SSC Chemistry Quiz

SSC Chemistry Quiz

  • 8. Boyle's Law holds good for any gas at

    1. High Temperature and Low Pressure
    2. High Temperature and High Pressure
    3. Low Temperature and High Pressure
    4. Low Temperature and Low Pressure
    Answer And Explanation
    Answer: Option C
    Explanation:
    Note:At higher pressures and lower temperatures, deviation from the ideal gas behavior became noticeable , and the relationship between pressure and volume can only be accurately described employing real gas theory. Boyle's law sometimes referred to as the Boyle-Mariotte law states that the absolute pressure and volume of a given mass of confined gas are inversely proportional, if the temperature remains unchanged within a closed system.

SSC Chemistry Quiz

SSC Chemistry Quiz


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