ExitExam+ESSLCE Support

Problem 3: Solve the inequality: 4(x - 1) + 3 > 7x - 5. 📝Solution: We'll solve this inequality by simplifying both sides of the equation and isolating x. Let's proceed: First distribute 4 to the terms inside the parentheses: 4x - 4 + 3 > 7x - 5 Combine like terms on both sides: 4x +(- 4 + 3) > 7x - 5 to get 4x - 1 > 7x - 5 Subtract 7x from both sides: to get 4x - 7x - 1 > -5 Simplify further: -3x - 1 > -5 Then, add 1 to both sides: -3x > -5 + 1 To obtain -3x > -4 Finally, divide both sides by -3 (📚note the flip in the inequality sign): x < -4/(-3) x < 4/3 Therefore, the solution to the inequality is x < 4/3. 📌Join, Share 👇 https://t.me/tutorialpointeth

✅Problem 1: Solve the inequality: 3x + 5 > 17. 📝Solution: To solve the inequality, we'll isolate x on one side. Subtract 5 from both sides: 3x > 17 - 5 to get 3x > 12 Next, divide both sides by 3: x > 12/3= 4 So, the solution to the inequality is x > 4.

✅Industrial Chemistry Practice. 👇 Q&A👇 #ESSLCE #ExitExam Preparation ========================== Question 1: Which of the following processes is commonly used in the production of sulfuric acid? a) Haber-Bosch process b) Contact process c) Solvay process d) Bayer process Answer: b) Contact process Explanation: The contact process is used for the production of sulfuric acid. It involves the oxidation of sulfur dioxide (SO2) to sulfur trioxide (SO3) using a catalyst, followed by the reaction of SO3 with water to form sulfuric acid (H2SO4). Question 2: Which of the following materials is commonly used as a catalyst in the hydrogenation of vegetable oils? a) Platinum b) Palladium c) Nickel d) Iron Answer: c) Nickel Explanation: Nickel is commonly used as a catalyst in the hydrogenation of vegetable oils. Hydrogenation is a process that converts unsaturated fats into saturated fats by adding hydrogen atoms, and nickel acts as a catalyst to facilitate the reaction. Question 3: Which of the following processes is used in the production of ammonia? a) Contact process b) Haber-Bosch process c) Solvay process d) Ostwald process Answer: b) Haber-Bosch process Explanation: The Haber-Bosch process is used in the production of ammonia. It involves the reaction of nitrogen gas (N2) and hydrogen gas (H2) in the presence of an iron catalyst at high temperatures and pressures. Question 4: Which of the following industrial processes involves the conversion of petroleum fractions into gasoline, diesel, and other fuels? a) Catalytic cracking b) Polymerization c) Distillation d) Oxidation Answer: a) Catalytic cracking Explanation: Catalytic cracking is an industrial process that converts heavy petroleum fractions into lighter hydrocarbon fuels such as gasoline, diesel, and jet fuel. It involves breaking large hydrocarbon molecules into smaller ones using a catalyst. Question 5: Which of the following is commonly used as a catalyst in the production of polyethylene? a) Chromium oxide b) Ziegler-Natta catalyst c) Platinum d) Iron Answer: b) Ziegler-Natta catalyst Explanation: The Ziegler-Natta catalyst, typically based on titanium or vanadium compounds, is commonly used in the production of polyethylene. It enables the polymerization of ethylene monomers to form the polymer polyethylene. Question 6: Which of the following industrial processes is used for the production of sodium carbonate (soda ash)? a) Contact process b) Haber-Bosch process c) Solvay process d) Ostwald process Answer: c) Solvay process Explanation: The Solvay process is used for the production of sodium carbonate (soda ash). It involves the reaction of sodium chloride (NaCl) with calcium carbonate (CaCO3) in ammonia (NH3) solution to produce sodium carbonate. ============================ 📌Join, Share 👇 https://t.me/tutorialpointeth

Answer: C) Methylamine 📝 Methylamine is a primary amine because it has one alkyl group attached to the nitrogen atom. Diethylamine and trimethylamine are secondary amines since they have two alkyl groups attached to the nitrogen atom, while ethylamine is also a primary amine. 13) What is the functional group of an alkyne? A) Carbonyl B) Alkyne C) Alkene D) Triple bond Answer: D) Triple bond 📝 Alkynes have a triple bond between carbon atoms as their functional group. Carbonyl groups are present in aldehydes and ketones, alkenes have a double bond, and alkene is not a functional group. 14) Which type of reaction involves the loss of a small molecule, often water, to form a larger molecule? A) Substitution B) Elimination C) Hydrolysis D) Condensation Answer: D) Condensation 📝Condensation reactions involve the joining of two molecules with the release of a small molecule, often water. Substitution involves the replacement of one functional group with another, elimination involves the removal of a small molecule, and hydrolysis involves the addition of water to break a chemical bond. 15)Which of the following is an example of a tertiary alcohol? A) Methanol B) Ethanol C) Propanol D) 2-Methyl-2-propanol Answer: D) 2-Methyl-2-propanol 📝2-Methyl-2-propanol is a tertiary alcohol because it has three alkyl groups attached to the carbon atom bearing the hydroxyl group. Methanol, ethanol, and propanol are primary alcohols since they have only one alkyl group attached to the carbon atom bearing the hydroxyl group. ============================ Join, Share https://t.me/tutorialpointeth