In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.

RECIPROCATE

Directions: From the given alternative words, select the word which can be formed using the letters of the given word.

TAMBOURINE 

Directions: From the given alternative words, select the word which can be formed using the letters of the given word.

ENCOURAGEMENT 

Direction: From the given alternatives select the word which cannot be formed using the letters of the given words.
"COMPETITION" 

Directions: From the given alternative words, select the word which can be formed using the letters of the given word.

HETEROGENOUS 

If A = 1, P = 2, L = 3, E = 4, T = 5 and S = 6, then a series of the following letters does not make a meaningful word. Find it?

CONSTITUTIONAL 

A word is given in capital letters, it is followed by four words. Out of these four words the three words cannot be formed from the letters of the word in capital letters. Point out the word which cannot be formed from the letters of the given word in capital letters.
GASTROENTEROLOGIST