From among the following choose the solutions with positive and negative deviations
(1) ROH+ROR
(2) RSH+ROR
(3) `CHCl_(3)+CH_(3)COCH_(3)`
(4) HF+ROH

Options

A. ROH+ROR
B. RSH+ROR
C. `CHCl_3+CH_3COCH_3`
D. `HF+ROH`

Explanation

To determine which of the given solutions exhibit positive or negative deviations from Raoult's law, we need to analyze the interactions between the components in each solution. Let's break down the solutions step by step:

### Step 1: Analyze ROH + ROR
- **Components**: Alcohol (ROH) and Ether (ROR)
- **Interactions**: Alcohols exhibit strong hydrogen bonding due to the -OH group. Ethers have weaker interactions.
- **Deviation Type**: Since the interactions between ROH (A) and ROR (B) are weaker than the interactions between ROH and ROH or ROR and ROR, this solution will show **positive deviation**.

### Step 2: Analyze RSH + ROR
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