Which of the following is not the official language of United nations Organisations? ?

The correct answer to the question regarding the official languages of the United Nations (UN) is B) Portuguese. The UN has six official languages: Arabic, Chinese, English, French, Russian, and Spanish. These languages were designated for use in official documents and meetings to ensure effective communication among member states.

Portuguese, while a significant global language and spoken by millions, is not one of the official languages recognized by the UN. This exclusion means that documents may not be available in Portuguese, and discussions in UN meetings do not include interpretation in this language. In contrast, the other optionsSpanish, Chinese, and the designation "None of them"do indicate languages that are officially recognized and used within the UN framework. Thus, the designation of Portuguese as not being one of the UN's official languages makes it the correct choice in this context.