When $MgCl_2 \cdot 6H_2O$ is strongly heated,then it forms

Which method is used to obtain virus-free plants?

Which of the following alkaline earth metals is the strongest reducing agent?

$A$ galvanometer,having a resistance of $50 \,\Omega$,gives a full-scale deflection for a current of $0.05 \,A$. The length in meters of a resistance wire of cross-sectional area $2.97 \times 10^{-2} \,cm^2$ that can be used to convert the galvanometer into an ammeter which can read a maximum of $5 \,A$ current is (Specific resistance of the wire = $5 \times 10^{-7} \,\Omega \cdot m$)

Which of the following is not considered as an organometallic compound?

The Biuret test is not given by: