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An electron is accelerated from rest through a potential difference of V volt. If the de Broglie wavelength of the electron is $1.227 \times 10^{-2} \text{ nm}$, the potential difference is :
The molar mass of a compound (X), whose $2.6 \text{ mol}$ weighs $312 \text{ g}$, is:
Which of the following contains the maximum number of atoms?
How many moles of lead (II) chloride will be formed from a reaction between $6.5\text{ g}$ of $\text{PbO}$ and $3.2\text{ g}$ of $\text{HCl}$?
In the structure of $ClF_3$, the number of lone pair of electrons on central atom 'Cl' is
The number of water molecules is maximum in:
When $50\text{ mL}$ of a $16.9\%\text{ (w/v)}$ solution of $\text{AgNO}_3$ is mixed with $50\text{ mL}$ of $5.8\%\text{ (w/v) NaCl}$ solution, then the mass of precipitate formed is: ($\text{Ag} = 107.8$, $\text{N} = 14$, $\text{O} = 16$, $\text{Na} = 23$, $\text{Cl} = 35.5$)
$10\text{ g}$ of hydrogen and $64\text{ g}$ of oxygen were filled in a steel vessel and exploded. The amount of water produced in this reaction will be:
The number of atoms in $0.1\text{ mole}$ of a triatomic gas is: ($N_A = 6.02 \times 10^{23}\text{ mol}^{-1}$)
Hydrocarbon (A) reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted to gaseous hydrocarbon containing less than four carbon atoms. (A) is
Match List-I (Molecules) with List-II (Shapes): List-I: (a) $PCl_5$ (b) $SF_6$ (c) $BrF_5$ (d) $BF_3$ List-II: (i) Square pyramidal (ii) Trigonal planar (iii) Octahedral (iv) Trigonal bipyramidal Choose the correct answer from the options given below:
Calculate the mole fraction of the solute in a $1.00 \text{ m}$ aqueous solution.
Select the correct sequence for transport of sperm cells in male reproductive system.
The volume of oxygen gas ($\text{O}_2$) needed to completely burn $1 \text{ L}$ of propane gas ($\text{C}_3\text{H}_8$) (both $\text{O}_2$ & propane measured at $0^\circ\text{C}$ and $1 \text{ atm}$) will be:
Which one of the following equipments is essentially required for growing microbes on a large scale, for industrial production of enzymes?
Which of the following glucose transporters is insulin-dependent? (1) GLUT I (2) GLUT II (3) GLUT III (4) GLUT IV
At S.T.P. the density of $\text{CCl}_4$ vapour in $\text{g/L}$ will be nearest to:
Which of the following pair of organelles does not contain DNA?
Drug called 'Heroin' is synthesized by
Types of RNA polymerase required in the nucleus for RNA synthesis: