If round seed shape (RR) is dominant over wrinkled seed shape (rr) and yellow cotyledon is dominant (YY) over green cotyledon (yy), then

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Chandan Asked Aug 7, 2023

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In garden pea, round shape of seeds is dominant over wrinkled shape

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If length of the common chord of the circles $x^{2}+y^{2}+2 x+3 y+1=0$ and $x^{2}+y^{2}+4 x+3 y+2=0$ is then the value of $[\lambda]$.

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Aayush Asked Mar 5

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If $A=\left[\begin{array}{rr}r & -2 \\ 3 & 7\end{array}\right]$ and $A^{-1}=\left[\begin{array}{cc}\frac{7}{34} & \frac{1}{17} \\ \frac{-3}{34} & \frac{2}{17}\end{array}\right]$, then the value of x is

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If $A=\left[\begin{array}{rr}-1 & 2 \\ 2 & -1\end{array}\right]$ and $B=\left[\begin{array}{l}3 \\ 1\end{array}\right]$, AX=B, then X is equal to

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If $A=\left[\begin{array}{rr}1 & 2 \\ 3 & -5\end{array}\right]$, then $A^{-1}$ is equal to

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The solubility of $\left[ Co \left( NH _{3}\right)_{4} Cl _{2}\right] ClO _{4}$ ____________, if the $\lambda_{ Co \left( NH _{3}\right)_{4} Cl _{2}^{+}}=50, \lambda_{ ClO _{4}{ }^{-}}=70$ and the measured resistance was $33.5 \Omega$ in a cell with cell constant of $0.20$ is ____________

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Cu-63 isotope is 69.09% and Cu-65, 30.91% in a copper atom. If the mass of ${ }^{63} Cu$ isotope is 62.9298 amu, what must be the mass of ${ }^{63} Cu$ isotope given that atomic mass of copper is 63.546 amu?

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A piece of a metal weighs between 0.5g and 0.6g. When dissolved in dilute H2SO4, 196 mL of hydrogen gas is evolved at S.T.P. If the correct atomic weight of the metal is 65.2, calculate exact weight of metal dissolved in acid.

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Let $f(x)=x(2-x), 0 \leq x \leq 2$. If the definition of ' $f$ ' is extended over the set, $R-[0,2]$ by $f(x-2)=f(x)$, then prove that ' $f$ ' is a periodic function of period 2 .

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Chandan Asked Sep 11, 2023

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A long spring is stretched by 2 cm, it potential energy is U. If the spring is stretched by 10 cm, the potential energy stored in it will be —

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For the cell prepared from electrode A and B, electrode $A : \frac{ Cr _{2} O _{7}^{2-}}{ Cr ^{3+}}, E _{\text {red. }}^{0}=+1.33 V$ and electrode $B$ : $\frac{F_{e^{3+}}^{F e^{2+}}, E_{\text {red. }}^{0}}{}=0.77 V$, which of the following statement is not correct?

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Cu2S and Ag2S are isomorphous compounds. The percentage of sulphur in Cu2S is 20.14 and that in Ag2S is 12.94. The atomic weight of copper is 63.57. Calculate the atomic weight of silver.

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The vapour density of a chloride of a metal is 81.5 (H=1) and the chloride contains 34.46 % metal. The specific heat of the metal is 0.115. Calculate the exact atomic weight and molecular formula of chloride.

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If round seed shape (RR) is dominant over wrinkled seed shape (rr) and yellow cotyledon is dominant (YY) over green cotyledon (yy), then

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