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CHEMISTRY Match The Following.

Practical Work · ICSE STD 9 (ICSE - English Medium). 2 questions.

Questions

Match The Following.

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2 questions · timed · auto-graded

Question 14 Marks
Match the following:
Column A Column B
(a) $NO_2$ (i) supports combustion
(b) $O_2$ (ii) rotten eggs smell
(c) $H_2$ (iii) brown gas
(d) $H_2S$ (iv) burns with a pop sound
Answer
Match the following:
Column A Column B
(a) $NO_2$ (i) brown gas
(b) $O_2$ (ii) supports combustion
(c) $H_2$ (iii) burns with a pop sound
(d) $H_2S$ (iv) rotten eggs smell
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Question 24 Marks
Match the following:
Column A Column B
(a) $Pb(NO_3)_2$ (i) residue swells up
(b) $CO_2$ (ii) fumes with $NH_3$​​​​​​​ solution
(c) $(NH_4)_2Cr_2O_7$ (iii) crackling sound
(d) $HCI$ (iv) lime water turns milky
Answer
Column A Column B
(a) $Pb(NO_3)_2$ (iii) crackling sound
(b) $CO_2$ (iv) lime water turns milky
(c) $(NH_4)_2Cr_2O_7$​​​​​​​ (i) residue swells up
(d) $HCI$ (ii) fumes with $NH_3​​​​​​​$ solution
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