class 12

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JEE Main

Glucose on prolonged heating with HI gives

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$(lim)_{x→0}((1−cos2x)xtan4x3+cosx )$is equal to

The angle between the lines whose direction cosines satisfy the equations $l+m+n=0$and $l_{2}=m_{2}+n_{2}$is

If z is a complex number of unit modulus and argument q, then $arg(1+z1+z )$equal

The forward biased conection is :

If g is the inverse of a function f and $f_{_{′}}(x)=1+x_{5}1 $then g(x) is equal to

For the non – stoichiometre reaction $2A+B→C+D$ , the following kinetic data were obtained in three separate experiments, all at 298 K The rate law for the formation of C is:

A uniform cylinder of length L and mass M having cross-sectional area A is suspended, with its length vertical, from a fixed point by a massless spring, such that it is half submerged in a liquid of density $σ$ at equilibrium position. The extension $x_{0}$ of the spring when it is in equilibrium is:

Consider :Statement I : $(p^q)pq^ ^ $is a fallacy.Statement II : $(pq )↔(q p)$is a tautology.