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Some Basic Concepts Of Chemistry

Question

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How many significant figures are present in the following?
2.0034

Solution

2·0034 has five significant figures because zero between two non-zero digits are always significant.

Some More Questions From Some Basic Concepts of Chemistry Chapter

What is the relation between temperature in Kelvin (K) and temperature on centigrade scale?

The popular unit of pressure is atmosphere, how is it related to pascal?

What are SI units of the following:

(i) Density
(ii) Molarity
(iii) Energy
(iv) Temperature ?

Out of 5.00 g and 5.0 g which one is more accurate and why?

What is iodised table salt?

Under what conditions air is considered as a heterogenous mixture?

What is gun powder?

Name two elements which are liquids.

Name two elements which are gases.

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