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Gk question on Which one among the following chemicals can be used to clean the....

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Which one among the following chemicals can be used to clean the surface of gold ornaments?

(Click on suggested Options to select the answer \| Color Red means : Wrong & Green Means: Correct)
Which one among the following chemicals can be used to clean the surface of gold ornaments? A. Sodium thiosulphate solution B. Aqua-regia C. Concentrated sodium hydroxide D. Concentrated sulphuric acid Check Answer Complaint Here As Incorrect Question / Answer

Related Questions A ray of white light strike the surface of an object.If all the colours are reflected, the surface would appear A. black B. white C. grey D. opaque Check Answer Complaint Here As Incorrect Question / Answer The ability of geckos which can hang on a glass surface using only one toe and to climb on sheer surface has been attributed to the A. covalent bond B. electrostatic interaction C. van der Waals' force D. hydrophobic interaction Check Answer Complaint Here As Incorrect Question / Answer According to Swachh Bharat Survey 2015, which of the following cities is most clean city of India? A. Allahabad B. Delhi C. Mysore D. Kanpur Check Answer Complaint Here As Incorrect Question / Answer India successfully test-fired the surface-to-surface Agni-III ballistic missile from the Wheeler Island off Odisha coast on 16th April 2015. what is its strike range? A. More than 3000 km B. More than 2500 km C. More than 2000 km D. More than 3500 km Check Answer Complaint Here As Incorrect Question / Answer The government on 19 May 2015 released a draft guidelines on gold monetization scheme to mobilise the gold held by households and institutions. Under this Draft how low one can deposit the gold? A. 30 Grams B. 50 Grams C. 10 Grams D. 20 Grams Check Answer Complaint Here As Incorrect Question / Answer

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