दिए गए शब्द के पर्याय के लिए चार चार विकल्प दिए गए हैं। उचित विकल्प चुनिए ।
चतुर
चामर: चँवर, मोरछल।
प्रवीण : निपुण, कुशल
प्रखर :तीक्ष्ण, तेज।
प्रचार :व्यवहार में आना।
चतुर का सही पर्याय हैं प्रवीण
Sodium Chloride is an example of
Potassium Permanganate is used for purifying drinking water, because it –
Protons were discovered by
Lexan is a man-made polymer used for making
Which of the following glass absorbs ultraviolet rays which are harmful for the eyes?
Manganite is an ore/mineral of
Which acid is majorly found in Orange?
The Polymer used for used for Electrical insulation buttons is
An atom has 7 electrons in its M-shell and contains 18 neutrons in its nucleus. What is its mass number?
The nucleus of an atom consists of-