Category: Chemistry GK MCQ

Q1. What is the atomic number of carbon?a) 5b) 6c) 7d) 8 Q2. Which of the following is a noble gas?a) Hydrogenb) Heliumc) Oxygend) Nitrogen Q3. What is the chemical symbol for iron?a) Feb) Ic) Ird) In Q4. What is the formula of sodium chloride?a) NaCO3b) NaClc) NaOHd) Na2CO3 Q5. Which element has the highest […]

Q1. What is a Galvanic Cell?a) A device that converts chemical energy into electrical energyb) A device that converts electrical energy into chemical energyc) A device that generates heat energy from chemical reactionsd) A device that generates light energy from chemical reactions Q2. In a Galvanic Cell, which electrode undergoes oxidation?a) Anodeb) Cathodec) Both electrodes

Q1. What is the branch of chemistry that deals with the study of the interconversion of electrical energy and chemical energy?a) Organic chemistryb) Electrochemistryc) Inorganic chemistryd) Analytical chemistry Q2. What is the process by which electrical energy is converted into chemical energy in an electrochemical cell?a) Oxidationb) Reductionc) Electrolysisd) Galvanization Q3. In an electrochemical cell,

Q1. What is the process by which a substance changes directly from a solid to a gas without passing through the intermediate liquid phase?a) Condensationb) Evaporationc) Sublimationd) Deposition Q2. Which chemical element is represented by the symbol ‘Ne’ in the periodic table?a) Neonb) Nickelc) Nitrogend) Sodium Q3. Which modern chemical process is used to convert

Q1. Which element is the most abundant in the Earth’s crust?a) Oxygenb) Siliconc) Aluminumd) Iron Q2. Which element is commonly used as a semiconductor in electronic devices?a) Carbonb) Siliconc) Aluminumd) Copper Q3. Which element is essential for the production of stainless steel?a) Chromiumb) Nickelc) Carbond) Iron Q4. Which element is known as the “universal solvent”

Q1. What is the process by which an unstable atomic nucleus emits radiation in the form of particles or electromagnetic waves?a) Nuclear fusionb) Nuclear fissionc) Radioactivityd) Atomic absorption Q2. Which of the following particles has the least penetrating power among the common types of radiation emitted during radioactive decay?a) Alpha particlesb) Beta particlesc) Gamma raysd)

Q1. What type of chemical reaction involves the exchange of ions between two compounds, resulting in the formation of two new compounds?a) Decomposition reactionb) Synthesis reactionc) Single displacement reactiond) Double displacement reaction Q2. Which chemical reaction involves the breakdown of a single compound into two or more simpler substances?a) Decomposition reactionb) Synthesis reactionc) Single displacement

Q1. What type of chemical reaction involves the combination of two or more substances to form a single, more complex compound?a) Decomposition reactionb) Synthesis reactionc) Single displacement reactiond) Double displacement reaction Q2. Which type of chemical reaction involves the breakdown of a single compound into two or more simpler substances?a) Decomposition reactionb) Synthesis reactionc) Single

Q1. Which chemical group is characterized by the presence of a hydroxyl (-OH) functional group?a) Aldehydeb) Carboxylc) Hydroxyld) Amino Q2. Which chemical group consists of a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group?a) Aldehydeb) Ketonec) Carboxyld) Hydroxyl Q3. What chemical group contains a carbon atom double-bonded to an oxygen

Q1. What type of chemical bond involves the sharing of electron pairs between atoms?a) Ionic bondb) Covalent bondc) Metallic bondd) Hydrogen bond Q2. Which of the following statements about ionic bonds is true?a) Ionic bonds involve the sharing of electron pairs between atoms.b) Ionic bonds occur between two nonmetal atoms.c) Ionic bonds are formed by