Answer:
Because sodium and potassium are very reactive metals so they react explosively with HCL and H2SO4 evolving a large amount of heat.
Explanation:
Answer: No.
Explanation: A negative integer can only be made with 2 negative integers or 1 positive and 1 negative integer.
Answer: Option (d) is the correct answer.
Explanation:
It is known that polyethene which have high density and these are generally safe plastics which does not transfer any chemicals to food ingredients. In most of the industries, these type of plastics have large application because these can be used to prepare plant pots, plastic woods, furniture etc.
High density polyethene is also known by the short form HDPE.
Whereas low density polyethene (LDPE), PVC, polystyrene and polypropylene are not safe plastics and they tend to harm the environment. So, they are not safe to store or preserve food items.
Thus, we can conclude that out of the given options HDPE polymers is used in plastic bottles and plastic containers.
It’s called An alkyl group.