Question
Consider the following Minerals: 1. Hematite
2. Nickel 3. Chromite 4. Dolomite 5. Kyanite 6. Mica Which of the above minerals are Non-metallic?Solution
Non-metallic minerals are minerals that do not contain any metals. Some examples of non-metallic minerals are limestone, mica, gypsum, coal, dolomite, phosphate, salt, and granite.
Which chemical is used to generate light to weld metals?
Which of the following cannot be cut by a knife?
Diamond is harder than graphite because of which of the following reason?
Sound cannot pass through –
Acid reacts with metal to form salt and liberates _________ gas.
In a compound, the elements are always present in definite proportions by:
Anesthesia which is administered during the surgeries in the hospitals is a mixture of which of the following gases?
100 gram of ice at 0°C is mixed with 100 gram of water at 80°C. What will be the final temperature of the mixture ?
Which of the following is used as a moderator in nuclear reactors?
Air coolers are more suitable for –
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