List of top Chemistry Questions asked in MHT CET

Which of the following changes will cause an increase in vapor pressure of 1 molal aqueous KI solution at the same temperature?
Identify the decreasing order of boiling point of alkanes (i) n-pentane (ii) Isopentane (iii) Neopentane
Methoxy ethane on reaction with hot concentrated HI gives
Which of the following oxyacid of sulfur contains S=S linkage?
Which of the following is a character of catalyst?
An element crystallizes in bcc type of unit cell having atomic radius \( 1.33 \times 10^{-8} \) cm, the edge length of unit cell will be
Which among the following compounds is treated with benzonitrile to obtain benzophenone in dry ether and then acid hydrolysis?
Which among the following group -15 elements forms hydrogen bonding in its hydride compounds?
For the following reaction, the relation between \( \Delta H \) and \( \Delta U \) is
\[ \text{2SO}_3(\text{g}) + \text{O}_2(\text{g}) \rightarrow \text{2SO}_3(\text{g}) \]
Which polymer is obtained from monomers 3-Hydroxy butanoic acid and 3-Hydroxy pentanoic acid?
An element crystallizes in bcc type of unit cell, the density and edge length of unit cell is 4 g cm\(^{-3}\) and 500 pm respectively. What is the atomic mass of an element?
Identify product ‘A’ in the following reaction.
\[ \text{R - C} \equiv \text{N} \xrightarrow{\text{DIBAL-H}} \xrightarrow{\text{H}_3\text{O}^+} A \]
0.5 molal aqueous solution of a weak acid (HX) is 20% ionised. If Kf of water is 1.86 K kg mol⁻¹, the lowering in freezing point of solution is
What is the number of moles and total number of atoms respectively present in 5.6 cm\(^3\) of ammonia gas at STP?
In aqueous phase the order of basic strength of alkylamine is
In an isothermal and reversible process, \(1.6 \times 10^{-2}\) kg O\(_2\) expands from 10 dm\(^3\) to 100 dm\(^3\) at 300 K, work done in the process is (R = 8.314 J/mol·K)
Identify the formula of potassium trioxalato aluminate (III).
Identify the mineral of aluminium from following.
Identify the compound A and B in the following reaction.
\[ \text{CH}_3\text{Cl} + \text{KCN (alc)} \xrightarrow{\Delta} A + 2\text{H}_2\text{O} + \text{HCl} \rightarrow B + \text{NH}_4\text{Cl} \]
Which of the following phenols is isolated from defensive secretion of grasshopper species?
What is the molecular formula of glyceraldehyde?
Which following pair of elements does NOT represent chemical twins?
Sulphapyridine is a/an
Electrophoresis is used .......
Which among the following is used as a fumigant pesticide for strawberries?