Q5. Atomic number of which of the following elements is greater than that of Chromium A. Titanium B. Potassium C. Iron D. Vanadium Answer: C. Iron The atomic number of Chromium is 24. Other than that of Iron (Atomic number -26) all have the atomic number with less value. Learn the complete list of chemical … Continue reading Atomic number of which of the following elements is greater than that of Chromium
The elements are the basic units of all types of matter. In 1800, only 31 elements were known. By 1865, the number of identified elements had more than doubled to 63. At present 118 elements are known. Of them, the recently discovered elements are man-made. The construction of Period Table is attributed to Dmitri Ivanovich … Continue reading Chemical Elements and its Atomic Number and Symbol
Q4. What is the chemical formula for Sodium hypochlorite? A. Na2CIO B. NaClO C. NaCIO2 D. NaCI2O Answer: B. NaClO Sodium hypochlorite is a chemical compound with the formula NaClO. It is composed of a sodium cation (Na+) and a hypochlorite anion (ClO−). It may also be viewed as the sodium salt of hypochlorous acid. … Continue reading What is the chemical formula of Sodium hypochlorite?