Choose the correct alternative from the following : - Assertion (A) : Graphite is slippery and used as a lubricant. Reason (R): Graphite has free electrons.
In following question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces. -
2, 5, 9, , 20, 27
In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative. -
c _ baa _ aca _ cacab _ acac _ bca