Q. The substance used in Holme’s signal of the ship is a mixture of
A) $CaC_{2} + Ca_{3}P_{2}$
B) $Ca_{3}\left( PO_{4} \right)_{2} + Pb_{3}O_{4}$
C) $H_{3}PO_{4} + CaCl_{2}$
D) $NH_{3} + HOCl$
Explanation
(a)
In Holme’s signal of the ship mixture of $CaC_{2}\ and\ Ca_{3}P_{2}$ is used.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.