STEP 1: ON TREATING CHLOROETHANE WITH KCN WE GET PROPANE - NITRILE . STEP 2: ON TREATING PROPANE - NITRILE WITH LiAlH4 WE GET PROPANAMINE.
Answer:
A. a magnet
Explanation:
Iron fillings could be separated from sand using a magnet
Answer:
The change in direction of polarity causes these linear patterns
Explanation:
It has been discovered by scientists that the magnetic field of the earth, has reversed its direction of polarity severally over millions of years. This means the <em>magnetic north pole</em> moves to where the <em>magnetic south pole</em> is and vice versa. These reversals in the direction of the Earth’s magnetic field at the mid-ocean ridge, creates a symmetrical pattern of magnetic stripes of opposite polarity, appearing as linear lines.
I believe the answer is D
