FREE Inorganic Chemistry Questions and Answers
Which of the following is the oxidation state of chromium in potassium dichromate (K2Cr2O7)?
Correct!
Wrong!
In potassium dichromate (K2Cr2O7), chromium has an oxidation state of +6, balancing the overall charge of the compound.
What is the geometry of the ammonia (NH3) molecule according to the VSEPR theory?
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Wrong!
Ammonia (NH3) has a trigonal pyramidal shape due to the lone pair on the nitrogen atom causing repulsion.
Which compound is known as quicklime?
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Wrong!
Quicklime is the common name for calcium oxide (CaO), widely used in construction and chemical industries.
Which of the following elements is a transition metal?
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Iron (Fe) is a transition metal belonging to the d-block elements in the periodic table.
What type of bond exists in sodium chloride (NaCl)?
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Sodium chloride (NaCl) is held together by ionic bonds, formed between positively charged sodium ions and negatively charged chloride ions.
Which gas is evolved when zinc reacts with dilute hydrochloric acid?
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Wrong!
When zinc reacts with dilute hydrochloric acid, hydrogen gas is evolved due to the reaction: Zn + 2HCl → ZnCl2 + H2.