What is the structural formula for Freon-12.

What will be the increasing order of basic strength of the following compounds?
\(C_2 H_5 NH_2,\left(C_2 H_5\right)_2 NH,\left(C_2 H_5\right)_3 N, C_6 H_5 NH_2\)

If the solubility of the given gases in water decreases in the order of formaldehyde, methane, vinyl chloride, argon.
Match List-I with List-II.

List-I(Gas)	List-II(\((\mathrm{K})_{\mathbf{H}} / \mathrm{k}\) bar)
(A) Formaldehyde	(I) 40.3
(B) Vinyl Chloride	(II) 0.413
(C) Argon	(III) 1.83 x \(\mathrm{10}^{-5}\)
(D) Methane	(IV) 0.611

Choose the correct answer from the options given below:

Which of following statement(s) are correct for Glucose ?
(A) Glucose is a monosaccharide sugar
(B) Glucose is an aldohexose and is also known as dextrose.
(C) Glucose can be hydrolyzed.
(D) Glucose is a reducing sugar.
Choose the correct answer from the options given below:

Glycosidic linkage is formed by :

Based on the data given below, which metal in its +2 oxidation state will not liberate hydrogen from acids ?

Metal	V	Ti	Co	Cr
\(\mathrm{E}^{\circ}\left(\mathrm{M}^{3+} / \mathrm{M}^{2+}\right)\)	-0.26	-0.37	+1.97	-0.41

The correct order of decreasing \(pK _{ a }\) values of the following compounds

Let \(\vec{a}, \vec{b}\) be two vectors such that \(|\vec{a}|=2,|\vec{b}|=3, \vec{a} \cdot \vec{b}=4\). Then \(|\vec{a}-\vec{b}|\) is equal to :

A transistor is operated in common emitter configuration at \(V_c = 3V\) such that a change in the base current from \(50 \mu A\) to \(250 \mu A\) produces a change in the collector current from 5 mA to 20 mA. The current gain is :

A monochromatic source emitting light of wavelength 300 nm has a power output of 33 W.
Calculate the number of photons emitted by this source in 2 minutes. (\( h = 6.62 \times 10^{-34} \text{ J s} \))

A polythene piece rubbed with wool is found to have a negative charge of \( 8 \times 10^{-10} \, \text{C} \). What is the number of electrons transferred ?

Read the passage carefully and answer the questions based on the passage:
The number of reacting species (atoms, ions or molecules) taking part in an elementary reaction, which must collide simultaneously in order to bring about a chemical reaction is called molecularity of a reaction. In the rate equation Rate \(=k[\mathrm{~A}]^x[\mathrm{~B}]^y\)
\(x\) and \(y\) indicate how sensitive the rate is to the change in concentration of A and B, respectively. Sum of these exponents, i.e., \(x +y\) gives the overall order of a reaction where \(x\) and \(y\) represent the order with respect to the reactants A and B respectively. Hence, the sum of powers of the concentration of the reactants in the rate law expression is called the order of that chemical reaction. For a first order reaction, the concentration of the reactant varies as \([\mathrm{R}]=[\mathrm{R}]_0 e^{-k t}\)
Which of the following is a zero order reaction?

If \(A\) and \(B\) are square matrices of the same order 3 , such that \(\operatorname{det}(A)=3\) and \(A B=3 I\), where \(I\) is an identity matrix of order 3. Then the value of \(\operatorname{det}(B)\) is :