315139
Consider the following equation, which represents a reaction in the extraction of chromium from its ore Which one of the following statements about the oxidation states of the substances is correct?
1 The iron has been reduced from +3 to +2 state.
2 The chromium has been oxidised from +3 to +6 state.
3 The carbon has been oxidised from +2 to +4 state.
4 There is no change in the oxidation state of the substances in the reaction.
Explanation:
CHXI08:REDOX REACTIONS
315140
In which of the following reactions, the underlined element has decreased its oxidation number during the reaction?
1
2
3
4
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315141
Which of the following oxidation state is the most common among the lanthanides?
1 4
2 2
3 5
4 3
Explanation:
+3 is the most common oxidation state among the lanthanides.
CHXI08:REDOX REACTIONS
315142
Assertion : Oxidation state of nitrogen in is . Reason : Nitrogen is less electronegative than hydrogen.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Let oxidation state of in be x Nitrogen is more electronegative than hydrogen. So the option (3) is correct.
315139
Consider the following equation, which represents a reaction in the extraction of chromium from its ore Which one of the following statements about the oxidation states of the substances is correct?
1 The iron has been reduced from +3 to +2 state.
2 The chromium has been oxidised from +3 to +6 state.
3 The carbon has been oxidised from +2 to +4 state.
4 There is no change in the oxidation state of the substances in the reaction.
Explanation:
CHXI08:REDOX REACTIONS
315140
In which of the following reactions, the underlined element has decreased its oxidation number during the reaction?
1
2
3
4
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315141
Which of the following oxidation state is the most common among the lanthanides?
1 4
2 2
3 5
4 3
Explanation:
+3 is the most common oxidation state among the lanthanides.
CHXI08:REDOX REACTIONS
315142
Assertion : Oxidation state of nitrogen in is . Reason : Nitrogen is less electronegative than hydrogen.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Let oxidation state of in be x Nitrogen is more electronegative than hydrogen. So the option (3) is correct.
NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXI08:REDOX REACTIONS
315210
Oxidation state of ' ' in molecule is
1 0
2 +2
3 +4
4 +6
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315139
Consider the following equation, which represents a reaction in the extraction of chromium from its ore Which one of the following statements about the oxidation states of the substances is correct?
1 The iron has been reduced from +3 to +2 state.
2 The chromium has been oxidised from +3 to +6 state.
3 The carbon has been oxidised from +2 to +4 state.
4 There is no change in the oxidation state of the substances in the reaction.
Explanation:
CHXI08:REDOX REACTIONS
315140
In which of the following reactions, the underlined element has decreased its oxidation number during the reaction?
1
2
3
4
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315141
Which of the following oxidation state is the most common among the lanthanides?
1 4
2 2
3 5
4 3
Explanation:
+3 is the most common oxidation state among the lanthanides.
CHXI08:REDOX REACTIONS
315142
Assertion : Oxidation state of nitrogen in is . Reason : Nitrogen is less electronegative than hydrogen.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Let oxidation state of in be x Nitrogen is more electronegative than hydrogen. So the option (3) is correct.
315139
Consider the following equation, which represents a reaction in the extraction of chromium from its ore Which one of the following statements about the oxidation states of the substances is correct?
1 The iron has been reduced from +3 to +2 state.
2 The chromium has been oxidised from +3 to +6 state.
3 The carbon has been oxidised from +2 to +4 state.
4 There is no change in the oxidation state of the substances in the reaction.
Explanation:
CHXI08:REDOX REACTIONS
315140
In which of the following reactions, the underlined element has decreased its oxidation number during the reaction?
1
2
3
4
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315141
Which of the following oxidation state is the most common among the lanthanides?
1 4
2 2
3 5
4 3
Explanation:
+3 is the most common oxidation state among the lanthanides.
CHXI08:REDOX REACTIONS
315142
Assertion : Oxidation state of nitrogen in is . Reason : Nitrogen is less electronegative than hydrogen.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Let oxidation state of in be x Nitrogen is more electronegative than hydrogen. So the option (3) is correct.
315139
Consider the following equation, which represents a reaction in the extraction of chromium from its ore Which one of the following statements about the oxidation states of the substances is correct?
1 The iron has been reduced from +3 to +2 state.
2 The chromium has been oxidised from +3 to +6 state.
3 The carbon has been oxidised from +2 to +4 state.
4 There is no change in the oxidation state of the substances in the reaction.
Explanation:
CHXI08:REDOX REACTIONS
315140
In which of the following reactions, the underlined element has decreased its oxidation number during the reaction?
1
2
3
4
Explanation:
Conceptual Questions
CHXI08:REDOX REACTIONS
315141
Which of the following oxidation state is the most common among the lanthanides?
1 4
2 2
3 5
4 3
Explanation:
+3 is the most common oxidation state among the lanthanides.
CHXI08:REDOX REACTIONS
315142
Assertion : Oxidation state of nitrogen in is . Reason : Nitrogen is less electronegative than hydrogen.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Let oxidation state of in be x Nitrogen is more electronegative than hydrogen. So the option (3) is correct.