A. MnO2
B. Mn2O3
C. Mn2O7
D. MnO
Submitted by: Muhammad Ali Kunbhar
Correct Answer: MnO2 ✔
Last Updated: January 12, 2020
Related MCQs
- The purpose of Smelting an ore is to________?
- Which set of quantum numbers is not allowed?
- Find the PH of a 0.001 M solution of Nitric acid HNO3?
- Potassium Permanganate is used for purifying drinking water, because_________?
- Marsh gas is_______?
- The chemical (Ethyl Mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of:_______?
- The average salinity of sea water is________?
- Tetraethyl lead is used as______?
- Electric bulb filament is made of__________?
- Oxidation state +1 for phosphorous is found in__________?
- SO2 reacts with Cl in sunlight to form__________?
- Argon gas was discovered by_______?
- The number of lone pairs in XeOF4 is_________?
- The O-O linkage is present in__________?
- Poisonous gas present in the exhaust fumes of a jet plane is__________?
- The formula C6H5-CO-CH3 represents_______ ?
- What is the density ofargon gas at a temperature of 30°C and a pressure of 1.05 atm?
- The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in__________?
- The molecular formula for cholesterol is C27 H46 O. What are the degrees of unsaturation for this compound?
- The most appropriate method for separating a large quantity of a mixture of nonvolatile, nonpolar organic compounds would be__________?
- The relatively high energy of the gauche conformation of butane is primarily associated with_________?
- When an aldehyde is reacted with hydrogen cyanide a ” Cyanihydrin” is formed. This process is best termed as __________?
- Which of the following solvents would best facilitate an SN2 substitution reaction?
- In a molecule of carbon monoxide, what are the formal charges on the two atoms?
- Which of the following aqueous solutions would have the highest boiling point?
- The mass of 3.2 moles of ammonia (NH3) gas?
- How many moles are in 22.2 grams of Calcium chloride, CaCl2?
- What is the mass percent of silver in silver notrate, AgNO3?
- A sample of an iron and oxygen ore has a mass of 35.8 grams. The iron in the compound has a mass of 27.9 grams. What is the percent iron in the ore?
- A compound is determined to have an emperical formula of C2H6O and a molar mass of 138 g/mole. What is the molecular formula?
- A substance is analyzed and found to have an emperical formula of CH2 and a molar mass of 56g/mole. What is the molecular formula of the compound?
- Which of the following phenomenon is considered responsible for Global Warming?
- The number of d-electrons in Fe2+ (Z = 26) is not equal to that of__________?
- The metallurgical process in which a metal is obtained in a fused state is called__________?
- The molecules of which gas have highest speed?
- The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is__________?
- The main buffer system of the human blood is__________?
- The most commonly used bleaching agent is_________?
- The heat required to raise the temperature of body by 1 K is called__________?
- The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is__________?
- The octane number of zero is assigned to__________?
- The Latin word formica means ant. The name formic acid is derived from this Latin word because__________?
- The heat energy produced when the human body metabolises 1 gram of fat is__________?
- Which of the following orbitals has maximum penetration effect?
- Which of the following is most soluble on water?
- The common oxidation state of lanthanides is_________?
- Which one of the following is a bridge element?
- The element having electronic configuration [kr] 4d10, 4f14,5s2,5p6,5d1,6s2 belongs to __________?
- Which group contains elements that exist as monoatomic molecule?
- The concept of telluric helix was developed by__________?
- The law of traids is applicable to__________?