what was meant to be a mere joke intended to defuse tension in our class turned out to be a sour experience for me.". (i) what type of sentence is this (ii) analyze it into clause

The type of sentence that's illustrated in "what was meant to be a mere joke intended to defuse tension in our class turned out to be a sour experience for me." is a declarative sentence.

A declarative statement refers to a statement that is used to pass information or expose a particular thing.

In this case, the sentence used in the question is a declarative sentence. It also has a dependent clause. This is illustrated as "what was meant to be".

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This is a declarative sentence.

Explanation:

Declarative sentences are those that aim to pass on information, expose something that has happened or is happening. This sentence can also be considered a comparative sentence, as it compares the emotion expected to be felt by the narrator and the emotion that the narrator actually felt in relation to the joke in the classroom.

The sentence also has a dependent clause "what was meant to be" that needs a complement to make sense and get a message across. This complement is the clause that is established immediately afterwards, ending the sentence.

no its not a run on sentence however i think you meant wet suits not sours also a run on sentence would be like surfers surf all winter long in southern california by using wet sours to keep them warm and the live their all year long