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JEE CHEMISTRY MCQ: P-BLOCK ELEMENTS
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A cold, green flame can be made by passing over warm:
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Correct option: B
White P
The correct answer is B (White P) because white phosphorus reacts with carbon dioxide to produce a cold, green flame.
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The gas used for inflating the tyres of aeroplanes is:
Which of the following is correct stability order of oxides of group elements is:
Assertion: Ozone is a powerful oxidising agent in comparison to .
Reason: Ozone is diamagnetic but is paramagnetic. Which of the following is kept in water? ion and are isoelectronic but in contrast to is chemically inert because of: Consider the following statements
(i) Reaction shows reducing character of sulphur dioxide
(ii) contains four , two and one bond
(iii) gas can be dried effectively by using conc. .
(iv) One of the major use of is in the manufacture of fertilizers.
Which of the following is the correct code for the statements above?
Reason: Ozone is diamagnetic but is paramagnetic. Which of the following is kept in water? ion and are isoelectronic but in contrast to is chemically inert because of: Consider the following statements
(i) Reaction shows reducing character of sulphur dioxide
(ii) contains four , two and one bond
(iii) gas can be dried effectively by using conc. .
(iv) One of the major use of is in the manufacture of fertilizers.
Which of the following is the correct code for the statements above?