List of top Questions asked in BCECE

The term quaternary structure is used in the context of
Which of the following is a soap?
Aspirin is
Which of the following gives $RNC$ when treated with $CHCl_{3}$ and $KOH$?
The de-Broglie wavelength of a neutron at $927^{\circ} C$ is $\lambda$. What will be its wavelength at $27^{\circ} C$ ?
Ferromagnetic materials used in a transformer must have
An LCR series circuit, connected to a source $E$, is at resonance. Then
A galvanometer of resistance $10\, \Omega$ gives full-scale deflection when $1\, mA$ current passes through it. The resistance required to convert it into a voltmeter reading upto $2.5\, V$ is
A body executing linear simple harmonic motion has a velocity of $3\, ms ^{-1}$ when its displacement is $4\, cm$ and a velocity of $4\, ms ^{-1}$ when its displacement is $3 cm$. What is the amplitude of oscillation ?
A pendulum bob of mass $m$ carrying a charge $q$ is at rest with its string making an angle $\theta$ with the vertical in a uniform horizontal electric field $E$. The tension in the string is
Adenosine is an example of
The $C-C$ bond dissociation energy in kcal/mol is
This metal is extracted from its ore by formation of a cyanide complex
Propan-2-ol + ethanoic acid $ \xrightarrow{{}} $
The following is a coordination compound of iron
A telescope has an objective of focal length $100\, cm$ and an eye-piece of focal length $5\, cm$. What is the magnifying power of the telescope when it is in normal adjustment ?
A convex lens of glass $(\mu=1.5)$ has a focal length of $8\, cm$ when placed in air. What is the focal length of lens when it is immersed in water $\left(\mu=\frac{4}{3}\right) ?$
The current through a bulb is increased by $1 \%$. Assuming that the resistance of the filament remains unchanged the power of the bulb will
An object is placed at the focus of a convex mirror. If its focal length is $20\, cm,$ the distance of mirror is
You are given two resistances $R_{1}$ and $R_{2} .$ By using them singly, in series and in parallel, you can obtain four resistances of $1.5\, \Omega, 2\, \Omega, 6\, \Omega$ and $8\, \Omega$. The values of $R_{1}$ and $R_{2}$ are
A paramagnetic substance is placed in a weak magnetic field and its absolute temperature $T$ is increased. As a result, its magnetisation
Two waves are represented by $y_1 = 4 \sin \, 404 \pi t$ and $y_2 = 3 \sin \, 400 \pi t.$ Then
A rectangular coil of $100$ turns and size $0.1 \times 0.05\, m$ is placed perpendicular to a magnetic field of $0.1\, T$. The induced emf when the field drops to $0.05\, T$ in $0.05\, s$ is
A bimetallic strip consists of brass and iron when it is heated it bends into an arc with brass on the convex and iron on the concave side of the arc. This happens because
A convex lens of glass $ (\mu = 15)$ has a local length of 8 cm when placed in air. What is the strength of lens when it is immersed in water $\bigg(\mu = \frac{4}{3}\bigg) ? $