Adjective

Usage of dual comparative is wrong.

The correct sentence should be ‘I am faster than you’.

Hence, option (b).

Adjectives that describe go before adjectives that classify. ‘New’ describes and ‘verbal ability’ classifies.

The correct sentence is, ‘I need a complete list of the new verbal ability books’.

Hence, option (b).

The comparison should be between two similar things

The correct sentence should be ‘My car is cheaper than yours’.

Hence, option (b).

Some adjectives are placed in a predicative position i.e. after a linking verb. They cannot come before a noun.

The correct sentence is, ‘The student was standing alone’.

Hence, option (b).

The comparison is between roads of Gujrat and MP.

The correct sentence should be ‘The roads of Gujrat are better those of MP’

Hence, option (b).

Adjectives that describe go before adjectives that classify. ‘Latest’ describes and ‘egyptian classifies.

∴ The correct sentence is ‘Have you read about the latest egyptian pyramids?’

Hence, option (b).

Older is used only when comparing people of different families. For same family we use the word elder.

The correct sentence should be ‘Naveen is my elder brother‘.

Hence, option (b).

When ‘as’ comes before the adjective, ‘a/an’ follows the adjective.

Hence, option (a).

‘Much’ is generally used in a negative sense.

The correct sentence should be ‘I feel very fine today‘.

Hence, option (b).

Nouns are usually not stated after superlative adjectives.

Hence, option (a).

Comparative sentence which end in ‘or’ are always followed by ‘to’.

The correct sentence should be ‘Jitesh is senior to me by 2 years‘.

Hence, option (b).

When two things are compared, the comparative degree is used. 

‘Biggest’ is a superlative which is incorrect.

∴ The correct sentence is ‘A tiger is bigger than a lion’.

Hence, option (b).

‘Preferable’ is followed by ‘to’.

The correct sentence should be ‘For me movies are preferable to watching sports ‘.

Hence, option (b).

Nouns are usually not stated after superlative adjectives. ‘Brother’ is a noun which does not need to be mentioned after the superlative ‘oldest’.

∴ The correct sentence is ‘He is the oldest in my family’ or ‘He is the eldest brother in my family’.

Hence, option (b).

The adjective ‘worth-watching’ qualifies the noun ‘movie’.

The correct sentence should be ‘RRR is a movie worth-watching‘.

Hence, option (b).

The correct sentence should be ‘Both of my friend’s children are studying in IIM‘.

Hence, option (b).

Apostrophe is not required in case of ‘the blind’. 

‘The blind’ is an adjective which is a plural expression. Some adjectives cannot be used before a noun.

∴ The correct sentence is ‘The school for the blind teaches braille.’.

Hence, option (b).

When more than one adjective is used before a noun in an attributive position, “and” is rarely used.

∴ The correct sentence is ‘A big ferocious jaguar jumped over the fence’.

Hence, option (b).

Adjectives of age come before the adjectives of origin and material.

Hence, option (a).

Adjectives that express attitudes, opinions or judgments generally go before adjectives that only describe. ‘Stupid’ expresses opinion and ‘little’ describes.

∴ The correct sentence is ‘Her stupid little idea was very useful.

Hence, option (b).