Consider the following statements regarding Solder and soldering alloys: 1. Solder is a eutectic alloy of lead and tin, meaning its melting point is lower than that of either pure lead or pure tin. 2. Rosin-core solder contains an acidic flux that chemically cleans the metal surfaces during soldering. 3. Lead-free solders commonly use a combination of tin, copper, and silver to replace toxic lead. Which of the statements given above are correct?
Options:
- A: 1 and 2 only
- B: 2 and 3 only
- C: 1, 2 and 3
- D: 1 and 3 only
Related Practice Questions:
- Given below are two statements, one labeled as Assertion (A) and the other labeled as Reason (R): Assertion (A): The Cabinet Mission Plan of $1946$ officially recommended the immediate partition of India into two separate sovereign nations. Reason (R): The Mission concluded that a separate state of Pakistan would not solve the communal minority problem and would create serious defense and communication complications. In the context of the above statements, which of the following is correct?
- Who was the Premier of Bengal during the Direct Action Day riots in $August \text{ } 1946$$, who faced severe criticism for his administration's failure to control the violence?
- In which of the following districts of East Bengal did Mahatma Gandhi spend nearly $4$ months from $November \text{ } 1946$ to $March \text{ } 1947$ to restore communal harmony after the outbreak of horrific riots?
- Given below are two statements, one labeled as Assertion (A) and the other labeled as Reason (R): Assertion (A): The Muslim League withdrew its acceptance of the Cabinet Mission Plan on $29 \text{ July } 1946$ and passed the 'Direct Action' resolution. Reason (R): Jawaharlal Nehru's press conference on $10 \text{ July } 1946$ stated that the Congress was completely free to change or modify the Cabinet Mission Plan in the Constituent Assembly. In the context of the above statements, which of the following is correct?