Explanation:
1. Only alcohols forms hydrogen bond between themselves and with other compounds containing an O-H, N-H, or F-H bond, such as water.
2. Alcohols up to 4 carbons are miscible in water because they have hydrogen bonded to oxygen and can form hydrogen bond with water. However, it is not possible for ethers.
3. When comparing ethers and alcohols of similar molecular weights, ethers have lower boiling point than alcohol. This is because of the presence of hydrogen bond in alcohols.
Answer:
The correct answer is option A.
Explanation:

Reducing the partial pressure of chlorine gas means that removal of chlorine gas from the equilibrium will shift the equilibrium in the direction according to Le Chatelier's principle.
On a removal of product from the equilibrium shifts the reaction in the forward reaction for reestablishment.So, when the partial pressure of chlorine is reduced by 50% the equilibrium will shift in forward direction in which
will be consumed to form more chlorine gas.
Hence, A is correct .
Answer:
Molar mass of bromine is equal to 
Explanation:
The molar mass of HBr is equal to the sum of atomic weight of Bromine.
Atomic Weight of hydrogen is equal to 
Atomic Weight of Bromine is equal to 
Molar mass of Bromine
= Atomic Weight of hydrogen + Atomic Weight of Bromine
Molar mass of Bromine 