Questions

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14 questions · timed · auto-graded

Question 11 Mark
A molecule of _____ contains a triple bond. (hydrogen, nitrogen)
Answer
A molecule of nitrogen contains a triple bond.
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Question 21 Mark
Electro covalent compounds have a _____ boiling point (low, high)
Answer
Electro covalent compounds have a high boiling point.
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Question 31 Mark
In covalent compounds, the bond is formed due to the __________ of electrons. (Sharing, Transfer) 
Answer
In covalent compounds, the bond is formed due to the sharing of electrons.
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Question 41 Mark
The _______ the concentration of an ion in a solution, the greater is the probability of its being discharged at its appropriate electrode.
Answer
The higher the concentration of an ion in a solution, the greater is the probability of its being discharged at its appropriate electrode.
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Question 51 Mark
As we descend the electrochemical series containing cations, the tendency of the cations to get ________ at the cathode increases.
Answer
As we descend the electrochemical series containing cations, the tendency of the cations to get reduced at the cathode increases.
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Question 61 Mark
With platinum electrodes, hydrogen is liberated at the ______and oxygen at the _________ during the electrolysis of acidified water.
Answer
With platinum electrodes, hydrogen is liberated at the Cathode and oxygen at the Anode during the electrolysis of acidified water.
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Question 91 Mark
Non-metallic ions are _____________ because they _____________ electrons.
Answer
Non-metallic ions are electronegative because they gain electrons.
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Question 101 Mark
Hydrogen and metallic ions are ____________ because they ____________ electrons.
Answer
Hydrogen and metallic ions are electropositive because they loose electrons.
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Question 111 Mark
The ions which discharge on the positive electrode during electrolysis ____________electrons. Thus, the ions are said to be _____________.
 
 
Answer
The ions which discharge on the positive electrode during electrolysis loose electrons. Thus, the ions are said to be anions.
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Question 121 Mark
The ions which discharge on the negative electrode during electrolysis _____________ electrons, Thus the ions are said to be __________.
Answer
The ions which discharge on the negative electrode during electrolysis gain electrons, Thus the ions are said to be cations.
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Question 131 Mark
The metal plate through which ____________ leaves from an electrolyte is called ____________ .It has ______________ of electrons.
Answer
The metal plate through which current leaves from an electrolyte is called Cathode .It has excess of electrons.
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Question 141 Mark
The metal plate trough which current enters into an electrolyte is called ___________. It has ____________ of electrons.
Answer
The metal plate trough which current enters into an electrolyte is called Anode . It has lack of electrons.
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Fill in the blanks. - Chemistry STD 10 Questions - Vidyadip