List of top Questions asked in MHT CET- 2020

If \[ \mathbf{a} = \frac{1}{\sqrt{10}} (3i + k), \quad \mathbf{b} = \frac{1}{7} (2i + 3j - 6k), \quad \text{then the value of} \] \[ (2\mathbf{a} - \mathbf{b}) \cdot \left[ (\mathbf{a} \times \mathbf{b}) \times (\mathbf{a} + 2\mathbf{b}) \right] \]

If \( \cos 2\theta = \sin \alpha \), then \( \theta = \)

The maximum value of the function \[ y = e^{5 + \sqrt{3} \sin x + \cos x} \]

Which of the following carbonyl compounds does NOT undergo aldol condensation?

What is the value of radius ratio of ionic crystal having coordination number six?

If a mixture of iodomethane and iodethane is treated with sodium metal in presence of dry ether, it forms:

Which among the following elements has the lowest density and is lightest?

Which of the following reactions does NOT yield an amine?

What is the molar conductivity of 0.1 M NaCl if its conductivity is \(1.06 \times 10^{-2} \, \Omega^{-1} \, \text{cm}^{-1}\text{cm}^{-1}\)?

What is the effective atomic number of Fe in [Fe(CN)\(_6\)]\(^{4-}\) (At. no. of Fe = 26)?

What happens during Bessemerization process of extraction of copper from copper pyrites?

What is the common unit of conductivity if the dimensions are expressed in centimeter?

What is the boiling point of heavy water?

Identify 'Z' in the following series of reactions: \[ \text{Butan-2-ol} \xrightarrow{\text{PCl}_3} X \xrightarrow{\text{alc. KOH}} Y \xrightarrow{i) \, \text{H}_2\text{SO}_4, \, ii) \, \text{H}_2\text{O}/\text{heat}} Z \]

Calcite crystals used in Nicol’s prism are formed of:

The rate constant for a second-order reaction, A \(\rightarrow\) Product is 1.62 M\(^{-1}\)s\(^{-1}\). What will be the rate of reaction when the concentration of reactant is 2 \(\times\) 10\(^{-3}\) M?

Which of the following monomers is used in manufacture of Neoprene rubber?

H\(_2\) molecule is more stable than Li\(_2\) molecule, because:

What is the lowest oxidation state possessed by phosphorus in its oxyacids?

Which of the following antihistamines contains the -CN group?

Which of the following compounds is obtained when t-butyl bromide is treated with alcoholic ammonia?

Identify the product Y in the following reaction: \[ \text{Maltose} \xrightarrow{\text{Hydrolysis}} X \xrightarrow{\text{dil.HNO}_3 (\text{excess})} Y \]

What is the oxidation number of carbon in glucose?

When carbolic acid is heated with concentrated nitric acid in the presence of concentrated sulphuric acid, it forms:

Which among the following coordination compounds does not have coordination number equal to the number of ligands?