Which of the following plants is useful for extracting an analgesic compound?

Identify the type of drug used to reduce pain and irritation of the stomach.

Which of the following are synthetic detergents?
$A$) $CH_3(CH_2)_{10}CH_2OH$
$B$) $CH_3(CH_2)_{10}CH_2OSO_3Na$
$C$) $CH_3(CH_2)_{15}N(CH_3)_3Br$
$D$) $(C_{15}H_{31}COO)_3C_3H_5$

Methacetin ($4$-methoxy-acetanilide) is a/an ... drug.

Assertion : The addition of $BHA$ to butter increases its storage life from months to years.
Reason : Butylated hydroxy anisole $(BHA)$ is an antioxidant.

Which one of the following is known as a broad-spectrum antibiotic?