Not Maths

All Questions
Which one is non-reducing carbohydrate
Find the number of relations R which are both reflexive and symmetric $\mathrm{R} = \{\mathrm{a}, \mathrm{b}, \mathrm{c}, \mathrm{d}\}$.
Number of bromine atoms in final product
In the given situation force at center on $\mathbf { 1 ~ k g }$ mass is $\mathbf { F } _ { \mathbf { 1 } }$. Now if $\mathbf { 4 ~ m }$ and 3 m is interchanged the force is $\mathrm { F } _ { 2 }$. Given : $\frac { \mathrm { F } _ { 1 } } { \mathrm {~F} _ { 2 } } = \frac { 2 } { \sqrt { \mathrm { a } } }$. Find $\alpha$.
(A) $\alpha = 1$
(B) $\alpha = 3$
(C) $\alpha = 5$
(D) $\alpha = 7$
A light ray incident on a slab of refractive index $\frac { 3 } { 2 }$. If wavelength of refracted ray is $\mathbf { 5 2 0 ~ n m }$. Find wavelength of incident ray. (A) 780 nm (B) 560 nm (C) 1460 nm (D) 360 nm
Correct Sequence of reagent for given
In given Pair which give thd +ve iodo form test. (A) Anisole and benzene (B) Acetic acid and aniline (C) ethanol and acetone (D) acetone and benzoid acid
In a spherical distribution potential is given by $\mathbf { v } \boldsymbol { = } \mathbf { a r ^ { 2 } } \boldsymbol { + } \mathbf { b }$ .Determine the charge present in sphere of radius R .
A cube of side length 8 cm having density $600 \mathrm {~kg} / \mathrm { m } ^ { 3 }$ is floating in liquid density $900 \mathrm {~kg} / \mathrm { m } ^ { 3 }$. Find height of cube inside the liquid.
Electric current in a circuit is given by $i = i _ { 0 } \left( \frac { t } { T } \right)$, find rms current for period $\mathbf { t } \boldsymbol { = } \mathbf { 0 }$ to $\mathbf { t } \boldsymbol { = } \mathbf { T }$. (A) $\frac { 1 _ { 0 } } { \sqrt { 3 } }$ (B) $\frac { \mathrm { i } _ { 0 } } { \sqrt { 2 } }$ (C) $\frac { \mathrm { i } _ { 0 } } { \sqrt { 5 } }$ (D) $\frac { \mathrm { i } _ { 0 } } { \sqrt { 7 } }$
Which pair have same hyper conjugation (I) (II) (III) (IV)
Match the list-I with list-II
List-I: (A) Cis 2-butene, Trans 2-butene (B) Butanoic acid, Isopropyl metharoate (C) 1-butene, 2-butene (D) n-pentane, isopentane
List-II: (P) Functional Isomer (Q) Stereoisomer (R) Position Isomer (S) Chain Isomer
Match the column
A. Thermal Conductivity
(P) $\left[ \mathrm { ML } ^ { 2 } \mathrm {~T} ^ { - 2 } \mathrm {~K} ^ { - 1 } \right]$
B. Boltzmann Constant
(Q) $\left[ \mathbf { M } ^ { \mathbf { 1 } } \mathbf { L } ^ { \mathbf { - 1 } } \mathbf { T } ^ { \mathbf { - 2 } } \right]$
C. Spring constant
(R) $\left[ \mathrm { M } ^ { 1 } \mathrm {~L} ^ { 1 } \mathrm {~T} ^ { - 3 } \mathrm {~K} ^ { - 1 } \right]$
D. Surface tension
(S) $\left[ \mathbf { M } ^ { \mathbf { 1 } } \mathbf { L } ^ { \mathbf { 0 } } \mathbf { T } ^ { - \mathbf { 2 } } \right]$
(T) $\left[ \mathrm { M } ^ { 1 } \mathrm {~L} ^ { 2 } \mathrm {~T} ^ { - 3 } \mathrm {~K} ^ { - 1 } \right]$
(U) $\left[ \mathrm { ML } ^ { 2 } \mathrm {~T} ^ { - 2 } \right]$
(A) $\mathrm { A } \rightarrow \mathrm { R } ; \mathrm { B } \rightarrow \mathrm { P } ; \mathrm { C } \rightarrow \mathrm { S } ; \mathrm { D } \rightarrow \mathrm { S }$
(B) $\mathrm { A } \rightarrow \mathrm { T } ; \mathrm { B } \rightarrow \mathrm { P } ; \mathrm { C } \rightarrow \mathrm { U } ; \mathrm { D } \rightarrow \mathrm { S }$
(C) $\mathrm { A } \rightarrow \mathrm { R } ; \mathrm { B } \rightarrow \mathrm { T } ; \mathrm { C } \rightarrow \mathrm { Q } ; \mathrm { D } \rightarrow \mathrm { Q }$
(D) $\mathrm { A } \rightarrow \mathrm { T } ; \mathrm { B } \rightarrow \mathrm { U } ; \mathrm { C } \rightarrow \mathrm { S } ; \mathrm { D } \rightarrow \mathrm { Q }$
Which one give positive Tollen's test.\ (A)\ (B)\ (C)\ (D) Cellulose
How many of the following complex(es) have unpaired electrons
A dipole is placed in uniform magnetic field $\mathrm { B } = 800$ gauss at an angle $30 ^ { \circ }$ then it experiences the torque of $16 \times 10 ^ { - 3 } \mathrm {~N} - \mathrm { m }$. Find the work done in slowly moving the dipole from stable equilibrium to unstable equilibrium.
(A) $64 \times 10 ^ { - 3 } \mathrm {~J}$
(B) $5 \times 10 ^ { - 3 } \mathrm {~J}$
(C) $\mathbf { 2 4 . 5 } \times \mathbf { 1 0 } ^ { - \mathbf { 3 } } \mathbf { ~ J }$
(D) $7.6 \times 10 ^ { - 3 } \mathrm {~J}$
An electron make transition from higher energy orbit ( $\mathbf { n } _ { \mathbf { 2 } }$ ) to lower energy orbit ( $\mathbf { n } _ { \mathbf { 1 } }$ ) in $\mathbf { L i } ^ { \mathbf { + } \mathbf { 2 } }$ ion such that $\mathbf { n } _ { \mathbf { 1 } } + \mathbf { n } _ { \mathbf { 2 } } = \mathbf { 4 }$ \& $\mathbf { n } _ { \mathbf { 2 } } - \mathbf { n } _ { \mathbf { 1 } } = \mathbf { 2 }$. Determine the wavelength emitted in the dimension (in nm )
(A) 11.4 nm
(B) 12.9 nm
(C) 9.2 nm
(D) 16.7 nm
Position of a particle is given by $\mathbf { x } = \mathbf { A } \boldsymbol { \operatorname { s i n } } ( \omega \mathbf { t } )$ potential energy is minimum at $t = \frac { T } { 2 \beta }$, where $T$ is time period. Find minimum value of positive $\boldsymbol { \beta }$. (A) 1 (B) 2 (C) 3 (D) 4
Total number of compounds react with Heinsberg reagent and formed product is insoluble in base (A) N - methyl aniline $\rightarrow \mathrm { Ph } - \mathrm { Nh } - \mathrm { Ch } _ { 3 }$ - 2-Amina (B) N-phenyl aniline - $p h - \lambda 1 \mathrm {~F} - p \mathrm {~h}$ \& Ammands (C) N,N-di-methyl aniline (D) Aniline (E) Methanamine (F) N - methyl ethanamine
\% of nitrogen in product T?
Assertion: In aromatic compounds, the compound should be cyclic and planar with all C atoms $\mathrm{sp^2}$ hybridized with unhybridized p-orbitals and follow Hückel's rules.
Reason: In given compound, atom 1 is $\mathrm{sp^2}$.
A simple pendulum with bob (mass $m$ \& charge $q$ ) is in equilibrium in presence of horizontal electric field E then tension in thread is.
(A) $\mathrm { mg } + \mathrm { qEtan } \theta$
(B) $\sqrt { \mathrm { mg } + \mathrm { qE } }$
(C) $\mathrm { mg } + \mathrm { qE }$
(D) $\sqrt { m ^ { 2 } g ^ { 2 } + q ^ { 2 } E ^ { 2 } }$
In given Conversion find out mass of benzaldehyde Toluene (5.8gm) □ 82\% benzaldehyde
But-2-yne react with $\mathrm { H } _ { 2 } , \mathrm { Pd } , \mathrm { BaSO } _ { 4 }$ form X and react with Na , NH 3 form Y Select corrects statements\ (1) $\mathrm { X } \& \mathrm { Y }$ are stereoisomers\ (II) X has more dipole momentum then Y\ (III) X has more B.P. then Y\ (IV) $\mathrm { X }$ \& Y will give different product with $\mathrm { O } _ { 3 }$\ (A) 1,11 \& III\ (B) II,IV \& III\ (C) I,IV \& II
Statement $\mathrm { I } - \left( \mathrm { CH } _ { 3 } \right) _ { 3 } \mathrm { C } ^ { + } , \mathrm { CH } _ { 3 } \rightarrow$ in more stable due to more $\alpha - \mathrm { n } \overline { \mathrm { m } }$
Statement $\mathrm { II } - \left( \widehat { \mathrm { CH } } _ { 3 } \right) _ { 3 } \mathrm { C } ^ { + } \mathrm { CH } _ { 3 } ^ { + }$is more stable $\mathbb { F }$ (A) Both Statement-I and Statement -II are correct t Butylet T (B) Both Statement-I and Statement-II are incorrect (C) Statement-I is correct and Statement-II are incorrect (D) Statement-I is incorrect and Statement-II are correct