Question

. The following reactions are carried out :
A: Nitrogen + metal - compound X.
B:X + water → ammonia + another compound.
C: Ammonia + metal oxide → metal + water + N2
One metal that can be used for reaction A is magnesium.
(a) Write the formula of the compound X formed.
(b) Write the correctly balanced equation for reaction
B where X is the compound formed.
(c) What property of ammonia is demonstrated by
reaction C?​

Answer 1

Answer:

two concentric circle of radii 3cm and 5cm are given. the length of chord BC which touches the inner circle at P is equal to

a)4cm

b)6 cm

c)8cm

d )10cm