Local People Involvement. Ex Kulhs

Q.

What is the name of the very effective water distribution system used since 400 years ago in Himachal Pradesh?

1. Tondas

2. None of These

3. Kulhs

4. Bullas

Q.

What made the kulhs water irrigation system used in Himachal Pradesh better than the trivial irrigation system.

1. The system of sharing the water was a common agreement among all the villages.

2. The village farthest from the source of the water used the water first.

3. Water from the kulhs percolated into the soil and fed springs at various points.

4. All of these

Q. Arrange the following elements in their increasing order of atomic radii:

1. $Zn$
2. $Ni$
3. Sc
4. $Cu$

Q. The atomic size of $Ga$ and $Al$ are almost same because of:

1. Poor shielding effect of $d-$orbitals electrons in $Ga$
2. More shielding effect of $d-$electrons in $Ga$
3. Poor shielding effect of $f-$orbital in $Ga$
4. High shielding effect of $3s,3p$ and $3d$ electrons in $Ga$

Q. Period sixth and seventh have $32$ elements each

1. False
2. True

Q. The increasing order of atomic radii of the following Group 13 elements is:

1. $Al<In<Ga<Tl$
2. $Ga<Al<In<Tl$
3. $Al<Ga<In<Tl$
4. $Al<Ga<T1<In$

Q. Among $Rb,Sr,Cs,\text{and}Ba,$ which has the highest atomic radii.

1. $Sr$
2. $Rb$
3. $Ba$
4. $Cs$

Q. Arrange the following elements in their increasing order of atomic radii:

1. $Zn$
2. $Ni$
3. Sc
4. $Cu$

Q. In general, the property (magnitudes only) that shows an opposite trend in comparison to other properties across a period is:

1. Atomic radius
2. Electronegativity
3. Electron gain enthalpy
4. Ionization enthalpy