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In a guitar, two strings $A$ and $B$ made of same material are slightly out of tune and produce beats of frequency $6 \text{ Hz}$. When tension in $B$ is slightly decreased, the beat frequency increases to $7 \text{ Hz}$. If the frequency of $A$ is $530 \text{ Hz}$, the original frequency of $B$ will be:
If n = 6, the correct sequence for the filling of electrons will be:
The ratio of frequencies of fundamental harmonic produced by an open pipe to that of closed pipe having the same length is:
In which of the following molecule, the internuclear distance will be maximum:
Given below are two statements: Statement I: The energy of the He⁺ ion in n=2 state is same as the energy of H atom in n=1 state. Statement II: It is possible to determine simultaneously the exact position and exact momentum of an electron in H atom. In light of the above statements, choose the correct answer from the options given below:
What is the simplest formula of the ionic compound formed when magnesium reacts with an element X whose ground state electronic configuration is $1s^2 2s^2 2p^3$?
Which one of the following orders is not in accordance with the property stated against?
The molar conductance of M/32 solution of a weak monobasic acid is $8.0 \text{ ohm}^{-1} \text{ cm}^2$ and at infinite dilution is $400 \text{ ohm}^{-1} \text{ cm}^2$. The dissociation constant of this acid is:
The molar conductivity of a solution of $\text{AgNO}_3$ at $298 \text{ K}$ (considering the given data: concentration $= 0.5 \text{ mol/dm}^3$, electrolytic conductivity $= 5.76 \times 10^{-3} \text{ S cm}^{-1}$) is:
Which one of the following compounds is a peroxide?
The correct order of the decreasing ionic radii among the following isoelectronic species is:
Identify the wrong statement in the following:
Which one of the following arrangements does not give the correct picture of the trends indicated against it?
Identify the incorrect match regarding the IUPAC Official Name of the element:
The element expected to form the largest ion to achieve the nearest noble gas configuration is:
In the given nuclear reaction, the element $X$ is $^{22}_{11}\text{Na} \rightarrow X + e^+$
Match Column-I with Column-II and select the correct option: **Column-I** (a) Copper (b) Fluorine (c) Silicon (d) Cerium **Column-II** (i) Non-metal (ii) Transition metal (iii) Lanthanoid (iv) Metalloid
The compound that gives p-cresol with p-methyl diazonium chloride is:
Which one of the following statements is true about the structure of $CO_3^{2-}$ ion?
The product formed in the following chemical reaction is: [Reaction Scheme Missing]