A marshmallow is put in a syringe to show a short experiment.

When the syringe piston is pulled out, the marshmallow size increases, and when the syringe piston is pushed in, the marshmallow size decreases. The given experiment is based on ________________

Which one is the correct equation for Charles' law?

In the equation PV = nRT, the value of R equals to

In PV = wRT/m, w and m refers to,

1 mole in terms of volume is equal to 24.2 L

The relative molecular mass is obtained by comparing the mass of the element with _______________ element.

The percentage composition of Carbon in C6H12O6 equals to

If the empirical formula of the compound is CH2O, the possible molecular formula can be

Molecular formula can be calculated by using formula

Molecular mass = 2 * vapor density

All the minerals are ore.

Which of the following is the correct order of metal extraction?

Roasting is a process where 1. ________________ is converted to 2. ________________

Roasting takes place in presence of air.

The CHEAPEST method of reducing metal is 

In pyrometallurgy the reducing agent used is

CuCO3 -----> CuO + CO2 is process of 

In electrolytic refining, impure metals are made 

less reactive metal can displace more reactive metal.

The electronic configuration of Chlorine in spdf form is

Write the electronic configuration of Chloride ion.

Element which is most electronegative is

Bromine is dark red liquid, Iodine is grey solid, and both Fluorine and Chlorine are gas. which one of them is PALE GREEN GAS.

Halogen in its molecular state is a strong reducing agent.

Chlorine acts as a bleaching agent due to ________________________ property.

Is the reaction 2KBr + Cl2 ------> 2KCl + Br2 possible?

According to the Aufbau principle 'Electrons are filled in increasing order of their energy"

Which one of the following shows color?

Haber's process uses Fe as a catalyst.

Change in internal energy = Ep - Er

Which state of matter has the highest entropy? (Solid, Liquid & Gas)

The heat of the solution is always negative.

Which reaction is more stable?

A. H2(g) + ½ O2(g)         H2O(l)        H°f = - 68.3k.cal

B. ½ H2(g) + ½ I2(s)          HI(g)         H°f = +6.2k.cal

Match the following homologous series with their general formula.

1. Alkane                                                                                  a. CnH2n OH

2. Alkene                                                                                  b. CnH2n + 2

3. Alkyne                                                                                  c. CnH2n - 2

4. Alcohol                                                                                 d. CnH2n 

Alcohol that is consumed

List the word root of organic compounds from C1 to C6

list the listed alcohol in increasing order of their boiling point.

(Butanol, Methanol, Ethanol, Propanol)

Ethanol is used in breathalyzer based on oxidation.

Esterification occurs ALCOHOL reacts with _______________________

The conversion of GLUCOSE to ETHANOL is done by MALTASE.