Navigation Menu
Home Blog Latest Notices
About Us Contact Us Disclaimer Privacy Policy Admin Login

Mdcat-past-papers Quiz

Filters: All questions
4121. The alkaline hydroxides of bromoethane shown below gives alcohol as the product: CH₃—CH₂—Br → CH₃—CH₂—OH The reagent and the condition used in the reaction is:



4122. In substitution reactions, dihaloalkane or secondary halogenoalkane give/show:



4123. Consider the reaction given below: Which statement is true?



4124. In the below reaction, the configuration of product is:



4125. Consider the reaction given below: CH₃CH₂Br → H₂C=CH₂ + HBr Mechanism followed by the reaction is:



4126. The species which are produced by heterolytic bond breaking and can act as electron pair donors are known as:



4127. Which of the following acts as a nucleophile in the reaction of alkyl halide with alcoholic aqueous solution?



4128. What is the order of increasing reactivity of alkyl halides?



4129. The decomposition of phosphorus pentachloride in the presence of moisture takes place by the following mechanism: PCL5+H2O→POCL3+2HCL (slow step) POCL3+3H2O→H3PO4+3HCL (Fast step) Result = PCL5 +4H2O→ H3PO4+5HCl the rate equation for this reaction will be:



4130. In the reaction sequence CH₃−CH₂−CH₂−Br + Alc KOH → C → D, Product D will be:



4131. Which balanced chemical equation shows the formation of ethyl chloride using thionyl chloride?



4132. The increasing stability order of the following compounds (1) CH₃CH₂CH₂⁺ (2) (CH₃)₃C⁺ (3) CH₃CH₂−CH⁺−CH₃ are:



4133. When 2-bromopropane reacts with sodium ethoxide, the major product is/are:



4134. Identify the correct statement related to substitution and elimination of alkyl halides:



4135. Alkyl halides involving -C-X bond breakage and -C-Nu bond formation simultaneously would follow which one of the following mechanisms:



4136. Alkyl halide, on reaction with NaOH, produces an alkane. Mechanism of reaction is:



4137. SN1 mechanism is a:



4138. The elimination between alkyl halides and strong base takes place by two mechanisms—E1 and E2. How many steps are involved in each one of these?



4139. Reactivity order of halogen acids is:



4140. Alkyl halides involving -C-X bond breakage and -C-Nu bond formation simultaneously would follow the mechanism:



Advertisement - Try Now
MDCAT Past Papers Free Online Quizzes
Advertisement Rs. 1,799 Buy Now
Watch Touch Screen With Bluetooth

Country Wise Scholarships

🇵🇰 Pakistan's Scholarships 🇺🇸 USA's Scholarships 🇬🇧 UK's Scholarships 🇨🇦 Canada's Scholarships 🇨🇳 China's Scholarships 🇸🇦 Saudi Arabia's Scholarships 🇦🇪 UAE's Scholarships 🇲🇾 Malaysia's Scholarships 🇪🇺 Europe's Scholarships 🇰🇷 South Korea's Scholarships
Advertisement Rs. 5,994 Buy Now
Zero® ICON Smartwatch

Online Free Quiz

MDCAT Past Papers MDCAT Practice Test AFNS Intelligence Test ISSB Intelligence Test
View All Quizzes →

Follow Us

Aggregate Calculator

Calculate your MDCAT aggregate for MBBS admissions

Calculate Now →