Metals, Minerals, Ores

Which one of the following is the hardest metal?

The heaviest natural element is?

The costliest metal of the world discovered recently is :

Which one of the following elements is kept safely in Kerosene oil?

These days yellow lamps are frequently used as street light. Which one of the following is used in these lamps :

Sodium Vapor Lamp is usually used as street light, because -

Which one of the following metals is accessed in the native state ?

Which one of the following materials contains calcium?

The chemical name of limestone is?

Doctors, Artists and Sculptors use Calcium Sulfate which is popularly known as -

In which of the following industries is mica used as a raw material -

Which among the following liquids is the best conductor of heat?

Mercury is basically used in thermometer devices because its especially is –

Match List-I with List-II and select the correct answer from the code given below the lists: List-I (Metal) List-II (Property) A. Sodium 1. Good conductor of electricity B. Mercury 2. Liquid at room temperature C. Silver 3. Poor conductor of heat D. Lead 4. Can be easily cut with knife Code : A B C D

Match List-I with List-II and select the correct answer using the codes given below the lists : List-I List-II A. Best conductor of heat and electricity 1. Gold B. Metal found in highest amount 2. Lead C. Most flexible metal and able to increase by bang 3. Aluminium D. Minimum heat conducting Codes : A B C D

Bauxite, is an ore of which of the following metals?

Which one of the following pairs is not correctly matched?

Match List-I with List-II and select the correct answer using the codes given below the lists : List - I (Naturally occurring substance) List-II (Elements present) A. Diamond 1. Calcium B. Marble 2. Silicon C. Sand 3. Aluminium D. Ruby 4. Carbon Code : A B C D