Find the reagent that oxidises glucose into saccharic acid?

A) $Br_{2},H_{2}O$

B) Hl,$\triangle$

C) $HNO_{3}, H_{2}O$



The products formed during the reaction of carbon with conc. $H_{2}SO_{4}$ are

$C+ H_{2}SO_{4} $           $\underrightarrow{ \triangle}$  products

A) $CO, SO_{2}, H_{2}O$

B) $CO_{2}, SO_{2}, H_{2}O$

C) $CO, CO_{2},H_{2}O$

D) $SO_{2}, H_{2}O$


The first-order decomposition of $H_{2}O_{2}$ in an appropriate medium is characterised by a rate constant of 0.2303 min-1 . What is the time  (in min) required to complete 9/10 fraction of the reaction?

A) 0.1

B) 10

C) 100

D) 0.01


A  camphor  sample melts at $176 ^{0} C.$ $K_{f}$ for  camphor is 40 K kg mol-1 . A solution of 0.02g  of a hydrocarbon  in 0.8 g of camphor melts at $156.77^{0}C$ . Hydrocarbon is  made up of  92.3% of carbon. What is the molecular formula of the hydrocarbon?

A) $C_{6}H_{6}$

B) $C_{12}H_{12}$

C) $C_{4}H_{4}$

D) $C_{8}H_{8}$


The vapour pressure of pure $CCl_{4}$ (molar  mass=154 g mol-1) and $SnCl_{4}$ (molar mass=170 g mol-1) at $25^{0} C$ are 115.0 and 238.0  torr respectively . Assuming ideal behaviour  , calculate the total approximate vapour  pressure  in torr of a solution containing 10 g of $CCl_{4}$  and 15 g of $SnCl_{4}$.

A) 185.85

B) 190.0

C) 180.7

D) 182.1