Directions:- Study the following information carefully to answer the question given below.
Six chemicals L, M, N, O, P and Q are kept in bottles of different colours viz. green, red, blue, white, pink and violet, not necessarily in the same order. The bottles are arranged from left to right, again not necessarily in the same order.
Chemical M is kept in a white bottle. Chemical L is not kept in a green bottle and is kept to the immediate left of the violet bottle. Chemical O is kept in the blue bottle and is kept exactly between the bottles containing chemicals L and M. The red bottle is at the extreme left end. The bottles containing chemical Q is not kept at either of the ends. The green bottle is kept at the extreme right end. Chemical P is not kept near the white bottle.
If all the six chemicals are arranged alphabetically from left to right, the positions of how many will remain unchanged?