Name the following
How are the blackened silver utensils and patinated (greenish)brass utensils cleaned ?

Explain the following: Why do silver articles turn balckish while copper vessels turn greenish on keeping in air for a long time?

Choose the correct alternative and write it along with its allotted alphabet : Which of the following process is to be carried out to avoid the formation of greenish layer on brass vessels due to corrosion?

Answer the following : How does the pollution occur due to vehicles ? Give the names of vehicles causing least pollution.

Answer the following How should proper care of cattle be taken in animal husbandry for clean and high milk yield?

Give scientific reasons for the following: Copper vessels turn greenish and silver articles turn blackish when kept open in air for a long time.

Write the correct alternative for each of the following: The rate of GST on stainless steel utensils is 18% , then the rate of state GST is…

Answer the following questions : Name the various oxidants . How nascent oxygen is liberated from these oxidants ?

The process due to which greenish coloured conating is formed on brass utensil.

Answer the following questions: What is a silvered glass mirror? Name the scientist who made it.