Question

explain suitable technique to separate the mixture of sand and salt

Answer 1

Answer:

filter paper can be used

Explanation:

because sand particles can't pass through a filter paper but water an pass easily

Answer 2

Mix the salt and sand mixture and add water. Then keep it for some time the sand will settle down because it is heavier than water. Now you can separate water. Now heat the water and the water will vaporise and the left over material is salt