Baking soda is an example of pure substance because:(A) The constituent particles have constant composition.(B) It has consistent property throughout the mixture.(C) Both a and b(D) None of these.
Baking soda is indeed an example of a pure substance, and the correct choice would be (C) Both a and b.
A pure substance is defined as a material that has constant composition and consistent properties throughout the sample. Baking soda (sodium bicarbonate, chemical formula NaHCO3) fits this definition because its constituent particles (sodium ions, bicarbonate ions, and water molecules) maintain a constant composition, and it exhibits consistent chemical and physical properties throughout the mixture.
Which of the following is likely to be least stable?
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Which of the following is not a Lewis acid?
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Which of the following is not a property of compounds?
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Which of the following is polar?
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Which of the following metals exists in their native state in nature?
A. (i) and (ii)
B. (ii) and (iii)
C. (ii) and (iv)
D. (iii) and (iv)
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