List of top Questions asked in JKCET- 2017

What should be possible $ d $-orbital energy levels of $ Ni $ in $ [Ni(CN)_4]^{2-} $ ?

What is the correct order of bond strength for $ NO, NO^+ $ and $ NO^- $ ?

What will be the $ pH $ at which precipitation of $ Zn(OH)_2 $ will take place from a solution containing $ 0.3 \,M \,Zn^{2+} $ ion? $ K_{sp} $ of $ Zn(OH)_2 = 1.2 \times 10^{-12} $

There are four conformational isomers of $ n $ -butane. Eclipsed, Fully eclipsed, Gauche, Staggered Arrange these isomers of $ n $ -butane in increasing order of energy.

An extrinsic semiconductor with electrons as majority carriers can be obtained by doping $ Ge $ or $ Si $ with

According to the expression $ \Delta G^{\circ} = -nFE^{\circ} $ , the cell reaction is spontaneous when (Notations and symbols carry their usual meanings)

A common observation seen in $ Fe_3O_4 $ is that it is ferrimagnetic at room temperature but at $ 850 \,K $ it becomes

Compounds $ A $ and $ C $ in the following reaction are $ CH_3CHO {->[(i) CH_3MgBr][(ii)H_2O]} (A) {->[H_2SO_4, \Delta ]} (B) $ $ {->[{\text{Hydroboration oxidation}}]} (C) $

The difference between the maximum and minimum values of resistance of a resistor with the color scheme green-green-red-silver is

Which of the following is the indirect way of generating $ FM $ ?

A resistance of $ 5 \Omega $ is connected in series with a capacitance of $ 1\,mF $ . The combination is connected to $ AC $ source of angular frequency $ 200 \, rad\, s ^{-1} $ . Then

$ Cu $ crystallizes as face centred cubic lattice with edge length of $ 3.56 \, ? $ . What will be the nearest distance between $ Cu $ atoms?

What is the probable free amino acid product formed when $ R^1CH(NH_2)CONHCHR^2COOH $ reacts with $ 1 $ -fluoro- $ 2,4 $ -dinitrobenzene in presence of $ NaHCO_3 $ followed by acid hydrolysis?

A body $ A $ thrown vertical upwards with a velocity v reaches a height of $ 200\, m $ . Another body $ B $ whose mass is twice that of $ A $ is thrown with a velocity $ 2v $ . Find the maximum height reached by $ B $ .

The absolute temperature of a gas is increased to $ 16 $ times of the original temperature. The rms speed of its molecules will become

What will be the value of activation energy ( $ E_a $ in $ kJ $ ) and rate constant ( $ k\, in\, min^{-1} $ ) for the given equation at $ 27^{\circ}C $ ? The equation : $ lnk = - 2576/T+ 12.1 $

Here, $ [x] $ denotes the greatest integer less than or equal to $ x $ . Given that $ f(x) = [x] + x $ . The value obtained when this function is integrated with respect to $ x $ with lower limit as $ \frac{3}{2} $ and upper limit as $ \frac{9}{2} $ , is

Amplitude modulation is the process of

When a simple pendulum is moved from the Earth's surface to deep mine, the period of oscillation

$ n $ identical capacitors are joined in parallel and charged to a potential $ V $ . The charged capacitors are disconnected and then connected in series using insulating handles such that the positive plate of one is connected to the negative plate of the other. The potential difference across the free plates of the combination is

How many bridging carbonyl $ (s) $ is/are present in the compound $ Fe_3(CO)_{12} $ compound?

Allene $ (C_3H_4) $ contains

A converging lens has a focal length of $ 0.12\, m $ . To get an image of unit magnification the object should be placed at what distance from the converging lens?

Which of the following pairs of organic compounds give positive Tollens? test?

The geometry and type of hybrid orbital present around the central atom in $ BF_3 $ is