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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  1998
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When a substance A reacts with water it produces a combustible gas B and a solution of substance C in water. When another substance D reacts with this solution of C, it also produces the same gas B on warming but D can produce gas B on reaction with dilute sulphuric acid at room temperature. A imparts a deep golden yellow colour to a smokeless flame of bunsen burner A, B, C and D respectively are:


( A ) $Li, H_{2}, LiOH, Zn$
( B ) None of the above
( C ) $K, H_{2}, NaOH, Zn$
( D ) $Na, H_2 , NaOH, Zn$

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