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Class-11,
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Q1) The s-block elements of the Periodic Table have only
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1 point
four groups
two groups.
one group
three groups
Q2) Group I elements of the periodic table are collectively known as
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transition elements
noble gases
alkaline earth metals.
alkali metals.
Q3) Group IlA of the periodic table consists of the six elements are collectively known as
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alkali metals.
noble gases
transition elements
alkaline earth metals.
Q4) One of the following is not called alkaline earth metal.
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1 point
Strontium
beryllium,
barium
radium.
Q5) Calcium and Magnesium belong to the category of
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coordination compounds
Alkaline earth metals.
transition elements
alkali metals.
Q6) Sodium and potassium belong to the category of
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alkaline earth metals.
transition elements
noble gases
alkali metals.
Q7) One of the following is highly radioactive
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1 point
Caesium
Rubidium
Francium
Lithium
Q8) The correct sequence in decreasing order of the percentage of nitrogen in the given compounds is
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Urea > Ammonium chloride > Ammonium nitrate > Ammonium nitrite
Urea > Ammonium nitrate > Ammonium nitrite > Ammonium chloride
Urea > Ammonium nitrite > Ammonium chloride > Ammonium nitrate
Urea > Ammonium nitrite > Ammonium nitrate > Ammonium chloride
Q9) Monovalent sodium and potassium ions found in large proportions in biological fluids. They help in
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1 point
maintenance of peristalsis
maintenance of nerve impulse conduction
maintenance of pulse rate
maintenance of cardiac rhythm
Q10) Divalent magnesium and calcium ions are found in large proportions in biological fluids. They help in
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1 point
maintenance of peristalsis
maintenance of ion balance
maintenance of cardiac rhythm
maintenance of pulse rate
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