* HSTU Admission Test 2016-2017

1. At the sea of electrons, metal floats like positive ions. Which of the metals supplies maximum amount of electrons to sea?

2. $\vec{A}=\hat{i}-3 \hat{j}+5 \hat{k}$ and $\vec{B}=$ aî $+6 \hat{j}-10 \hat{k}$ for what value of a when $\vec{A}$ and $\vec{B}$ will be parallel?

3. The time period of any pendulum is $8 \mathrm{sec}$. What is the frequency of that pendulum?

4. How many carboxylic acid radicals are there in thallic acid?

5. What is the temperature called at which ferromagnetic substance turns into paramagnetic substance?