Chemistry questions
29404 published questions with worked solutions.
- Match the following and identify the correct option. List-I: (a) CO(g) + H2(g) (b) Temporary hardness of water (c) B2H6 (d) H2O2...Not in JEE Main or NEET syllabus
- Match the following : List-I: (a) CO (b) BaO (c) Al2O3 (d) Cl2O7 List-II: (i) Basic (ii) Neutral (iii) Acidic (iv) Amphoteric
- The rate constant for a first order reaction is 4.606 10^ -3 s^ -1 . The time required to reduce 2.0 g of the reactant to 0.2 g...
- Which of the following alkane cannot be made in good yield by Wurtz reaction ?
- Which statement regarding polymers is not correct?Not in JEE Main or NEET syllabus
- At 298 K, the standard electrode potentials of Cu^ 2+ /Cu, Zn^ 2+ /Zn, Fe^ 2+ /Fe and Ag^ + /Ag are 0.34 V, -0.76 V, -0.44 V and...
- The IUPAC name of an element with atomic number 119 is :
- Given below are two statements Statement I : In the coagulation of a negative sol, the flocculating power of the three given ions...Not in JEE Main or NEET syllabus
- Which of the following statement is not correct about diborane?
- RMgX + CO _2 dry ether Y H _3 O ^+ RCOOH What is Y in the above reaction?
- What mass of 95% pure CaCO_3 will be required to neutralise 50 mL of 0.5 M HCl solution according to the following reaction? CaCO...
- Amongst the following which one will have maximum 'lone pair - lone pair' electron repulsions?
- Match List - I with List - II List-I: (a) Li (b) Na (c) KOH (d) Cs List-II: (i) absorbent for carbon dioxide (ii) electrochemical...Not in JEE Main or NEET syllabus
- Given below are half cell reactions: MnO _4^ - +8 H ^ + +5e^ - Mn ^ 2+ +4 H _2 O , E^ _ Mn ^ 2+ / MnO _4^- =-1.510 V 12 O _2+2 H...
- Match List - I with List - II. List-I (Hydrides): (a) MgH_2 (b) GeH_4 (c) B_2H_6 (d) HF List-II (Nature): (i) Electron precise...Not in JEE Main or NEET syllabus
- Given below are two statements Statement I : The acidic strength of monosubstituted nitrophenol is higher than phenol because of...
- Match List - I with List - II. List-I (Drug class): (a) Antacids (b) Antihistamines (c) Analgesics (d) Antimicrobials List-II...Not in JEE Main or NEET syllabus
- The incorrect statement regarding chirality is :
- Which one is not correct mathematical equation for Dalton's Law of partial pressure? Here p = total pressure of gaseous mixture
- Given below are two statements Statement I : Primary aliphatic amines react with HNO_2 to give unstable diazonium salts....