AP EAPCET 2022 4TH JULY EVENING SHIFT

A metal tape is calibrated at \(25^{\circ} \mathrm{C}\). On a cold day when the temperature is \(-15^{\circ} \mathrm{C}\), the percentage error in the measurement of length is

(Coefficient of linear expansion of metal \(=1 \times 10^{-5}{ }^{\circ} \mathrm{C}^{-1}\))

A solution containing 6.0 g of urea is isotonic with a solution containing 10 g of a non-electrolytic solute \(X\). The molar mass of X (in g \(\mathrm{mol}^{-1}\)) is

$$\int_{\pi / 4}^{5 \pi / 4}(|\cos t| \sin t+|\sin t| \cos t) d t=$$

In SI units, \(\mathrm{kg}-\mathrm{m}^2 \mathrm{~s}^{-2}\) is equivalent to which of the following?

The formal charges of atoms (1), (2) and (3) in the ion is

In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked randomly. The probability that it is neither red nor green is