Is Repulsion A True Test Of Electrification
Yes. Repulsion is a sure test for electrification than attraction. Because repulsion is observed between the two bodies with like... View Article
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Which One Of The Following Has The Largest Number Of Isomers? ( R= Alkyl Group, En = Ethylenediamine) (A) [Co(En)2C12]+(B) [Ru(Nh3)5Cl]2+(C) [Co(Nh3)5Cl]2+(D) [Ir(Pr3)2H(Co)]2+
The correct answer is (A)\(\begin{array}{l} [CO(en)2C1_{2}]^{+}\end{array} \) \(\begin{array}{l} [CO(en)2C1_{2}]^{+}\end{array} \) – Dichloridobis(ethane-1,2-diamine) Cobalt (III) show geometrical as well as optical... View Article
The Type Of Hybridisation Of P Atom In PCL 5, PCL 4+ And PCL 6− Is
In \(\begin{array}{l} PCl_{5},\end{array} \) the number of electron pairs around the central atom P is 5 and the number of... View Article
Sucrose Decomposes In Acid Solution Into Glucose And Fructose According To The First Order Rate Law, With T1/2 = 3.00 Hours. What Fraction Of Sample Of Sucrose Remains After 8 Hours?
\(\begin{array}{l} k = \frac{0.063}{t_{1/2}} \end{array} \) \(\begin{array}{l} \Rightarrow \frac{0.063}{3.0} \end{array} \) \(\begin{array}{l} \Rightarrow 0.231/hr \end{array} \) Let initial concetration of... View Article
The Work Function Of A Photoelectric Material Is 3.3 Ev. Its Threshold Frequency Will Be
As given in the question, W = hv V = W/h \(\begin{array}{l} \Rightarrow \frac{(3.6 * 1.6 * 10^{-19})}{6.6 * 10^{-34}}... View Article
A Healthy Young Man Standing At A Distance Of 7 M From A 11.8 M High Building Sees A Kid Slipping From The Top Floor. With What Speed (Assumed Uniform) Should He Run To Catch The Kid At The Arms Height At (1.8 M)?
Given: A healthy young man standing at a distance Of 7m The height of the building = 11.5m The kid... View Article
Factorise X2 4X 3
\(\begin{array}{l} x^{2} + 4x + 3 \end{array} \) \(\begin{array}{l} \Rightarrow x^{2} + 3x + x + 3 \end{array} \) \(\begin{array}{l}... View Article
An Electron Is In One Of The 3D Orbitals. Give The Possible Values Of N, 1 And M For This Electron.
For 3d-orbital, Principal quantum number (n) = 3. Azimuthal quantum number, l = 2 Magnetic quantum number,\(\begin{array}{l} m_{l} \end{array} \)=... View Article
A Gaseous Hydrocarbon Contains 82.76% Of Carbon. Given That Its Vapour Density Is 29,Find Its Molecular Formula. [C = 12, H =1].
The molecular mass of carbon (C) is 12 The %composition of carbon (C) is 82.76 Total number of carbon atoms... View Article
Two Solids Dissociated As Follows A(S)⇌B(G)+C(G); K P1=Xatm20 D(S)⇌C(G)+E(G); K P2=Y Atm2. The Total Pressure When Both The Solids Dissociate Simultaneously Is:
Two Solids Dissociated As Follows: A(S)⇌B(G)+C(G); K P1=Xatm20. D(S)⇌C(G)+E(G); K P2=Y Atm2. The Total Pressure When Both The Solids Dissociate... View Article
Dog : Bark :: Goat :
Dog : Bark:: Goat: Bleat A dog is to Bark as Goat is to Bleat Explore more such questions and... View Article
Find The Velocity (Ms −1 ) Of Electron In First Bohr Orbit Of Radius A 0. Also, Find The De Broglie Wavelength (In ‘m’). Find The Orbital Angular Momentum Of 2P Orbital Of Hydrogen Atom In Units Of H/2π.
v = \(\begin{array}{l} \frac{2.188 * 10^{6}}{n} msec^{-1} \end{array} \) v = \(\begin{array}{l} \frac{2.188 * 10^{6}}{1} msec^{-1} \end{array} \) v =... View Article
The Electric Potential Decreases Uniformly From 120v To 80v As One Moves On The X-axis From X= −1cm To X= +1cm. The Electric Field At The Origin
\(\begin{array}{l} dv = -\overrightarrow{E}*\overrightarrow{d}x = -Edxcos\Theta \end{array} \) \(\begin{array}{l} E = – \frac{dV}{cos\Theta dx} \end{array} \) \(\begin{array}{l} cos\Theta \approx 1... View Article
Classroom Activity(Constructing The ‘square Root Spiral’): Take A Large Sheet Of Paper And Construct The ‘square Root Spiral’ In The Following Fashion. Start With A Point O And Draw A Line Segment Op 1Of Unit Length. Draw A Line Segment P 1P 2Perpendicular To Op 1Of Unit Length. Now Draw A Line Segment P2P 3Perpendicular To Op 2 . Then Draw A Line Segment P3P 4Perpendicular To Op . Continuing In This Manner, You Can Get The Line Segment P N−1P N By Drawing A Line Segment Of Unit Length Perpendicular To Op N−1 . In This Manner, You Will Have Created The Points P 2 ,P 3,…….,P N,….., And Joined Them To Create A Beautiful Spiral Depicting 2 , 3, 4,…….
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Define The Following Terms A Melting Point B Boiling Point
Melting Point The melting point is usually defined as the temperature at which a solid melts to form a liquid... View Article
EDTA Is Used For The Estimation Of
EDTA is used for the estimation of Calcium (Ca^{2+}) and Magnesium (Mg^{2+}) ions. EDTA – Ethylenediaminetetraacetic acid – [CH2N(CH2CO2H)2]2 Explore... View Article
Which Kind Of Plastid Is More Common In Flowers And Fruits
Chromoplasts Chromoplasts are plastids, which are found in fruits, flowers and in roots. These plastids are coloured plastids responsible for... View Article
Draw A ‘more Than Ogive’ For The Following Data:Class, 0-10,10-20, 20-30,30-40,0-50,50-60,60-70,70-80. Frequency, 5,9,10,12,8,7,5,4
GIVEN Class 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 Frequency 5 9 10 12 8 7 5 4 SOL:... View Article
What Happens When White Phosphorus Is Heated With Concentrated NaOH Solution In An Inert Atmosphere Of Co2
When white Phosphorus is heated with concentrated Sodium hydroxide solution in an inert atmosphere of carbon dioxide give rise to... View Article
Pheretima And Its Close Relative Derive Nourishment From(A) Soil Insects(B) Sugarcane Root(C) Small Pieces Of Fresh Fallen Leaves Of Maize(D) Decaying Fallen Leaves And Soil Organic Matter
The correct answer is (D) Decaying Fallen Leaves And Soil Organic Matter. Pheretima is a genus of earthworms and is... View Article
